Immunogenic compounds for cancer therapy

ABSTRACT

The invention relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, the said antigenic peptide being selected in the group consisting of sequences described in the specification.

FIELD OF THE INVENTION

The present invention is in the field of cancer therapy, more particularly through immunotherapeutic methods.

BACKGROUND OF THE INVENTION

Cancer is one of the leading causes of death across the world. According to the World Health Organization, in 2012 only, 14 million new cases and 8.2 million cancer-related deaths were reported worldwide, and it is expected that the number of new cancer cases will rise by about 70% within the next two decades. So far, more than 60% of world's total new annual cases occur in Africa, Asia and Central and South America. These regions also account for 70% of the world's cancer deaths. Among men, the five most common sites of cancer are lung, prostate, colorectum, stomach and liver; while in women, those are breast, colorectum, lung, cervix, and stomach.

Cancer has long been managed with surgery, radiation therapy, cytotoxic chemotherapy, and endocrine manipulation, which are typically combined in sequential order so as to best control the disease. However, major limitations to the true efficacy of these standard therapies are their imprecise specificity which leads to the collateral damage of normal tissues incurred with treatment, a low cure rate, and intrinsic drug resistance.

In the last years, there has been a tremendous increase in the development of cancer therapies due notably to great advances in the expression profiling of tumors and normal cells, and recent researches and first clinical results in immunotherapy, or molecular targeted therapy, have started to change our perception of this disease.

Promising anticancer immunotherapies have now become a reality and evidences that the host immune system can recognize tumor antigens have led to the development of anticancer drugs which are now approved by regulatory agencies as the US Food and Drug Administration (FDA) and European Medicines Agency (EMA). Various therapeutic approaches include, among others, adoptive transfer of ex vivo expanded tumor-infiltrating lymphocytes, cancer cell vaccines, immunostimulatory cytokines and variants thereof, Pattern recognition receptor (PRR) agonists, and immunomodulatory monoclonal antibodies targeting tumor antigens or immune checkpoints (Galuzzi et al., Classification of current anticancer immunotherapies. Oncotarget. 2014 Dec. 30; 5(24):12472-508).

Unfortunately, a significant percentage of patients can still present an intrinsic resistance to some of these immunotherapies or even acquire resistance during the course of treatment. For example, the three-year survival rate has been reported to be around 20% swith the anti-CTLA-4 antibody Ipilumumab in unresectable or metastatic melanoma (Snyder et al., Genetic basis for clinical response to CTLA-4 blockade in melanoma. N Engl J Med. 2014 Dec. 4; 371(23):2189-2199; Schadendorf et al., Pooled Analysis of Long-Term Survival Data From Phase II and Phase III Trials of Ipilimumab in Unresectable or Metastatic Melanoma. J Clin Oncol. 2015 Jun. 10; 33(17):1889-94), while the three-year survival rate with another check point inhibitor, Nivolumab targeting PD1, has been reported to be of 44% in renal cell carcinoma (RCC) and 18% in NSCLC (Mc Dermott et al., Survival, Durable Response, and Long-Term Safety in Patients With Previously Treated Advanced Renal Cell Carcinoma Receiving Nivolumab. J Clin Oncol. 2015 Jun. 20; 33(18):2013-20; Gettinger et al., Overall Survival and Long-Term Safety of Nivolumab (Anti-Programmed Death 1 Antibody, BMS-936558, ONO-4538) in Patients With Previously Treated Advanced Non-Small-Cell Lung Cancer. J Clin Oncol. 2015 Jun. 20; 33(18):2004-12). Fundamental drug resistance thus represents a fixed barrier to the efficacy of these immunotherapies. It is thus clear that a different approach to cancer treatment is needed to break this barrier.

Absence of response in a large number of subjects treated with these immunotherapies might be associated with a deficient anti-tumor immune response (as defect in antigen presentation by APC or antigen recognition by T cells). In other words, positive response to immunotherapy correlates with the ability of the immune system to develop specific lymphocytes subsets able to recognize MHC class I-restricted antigens that are expressed by human cancer cells (Kvistborg et al., Human cancer regression antigens. Curr Opin Immunol. 2013 April; 25(2):284-90). This hypothesis is strongly supported by data demonstrating that response to adoptive transfer of tumor-infiltrating lymphocytes, is directly correlated with the numbers of CD8⁺ T-cells transfused to the patient (Besser et al., Adoptive transfer of tumor-infiltrating lymphocytes in patients with metastatic melanoma: intent-to-treat analysis and efficacy after failure to prior immunotherapies. Clin Cancer Res. 2013 Sep. 1; 19(17):4792-800). A potent anti-tumoral response will thus depend on the presentation of immunoreactive peptides and the presence of a sufficient number of reactive cells “trained” to recognize these antigens.

Tumor antigen-based vaccination represent a unique approach to cancer therapy that has gained considerable interest as it can enlist the patient's own immune system to recognize, attack and destroy tumors, in a specific and durable manner. Tumor cells are indeed known to express a large number of peptide antigens susceptible to be recognized by the immune system. Vaccines based on such antigens thus provide great opportunities not only to improve patient's overall survival but also for the monitoring of immune responses and the preparation of GMP-grade product thanks to the low toxicity and low molecular weight of tumor antigens. Examples of tumor antigens include, among others, by-products of proteins transcribed from normally silent genes or overexpressed genes and from proteins expressed by oncovirus (Kvistborg et al., Human cancer regression antigens. Curr Opin Immunol. 2013 April; 25(2):284-90), and neo-antigens, resulting from point mutations of cellular proteins. The later are of particular interest as they have been shown to be directly associated with increased overall survival in patient treated with CTLA4 inhibitors (Snyder et al., Genetic basis for clinical response to CTLA-4 blockade in melanoma. N Engl J Med. 2014 Dec. 4; 371(23):2189-2199; Brown et al., Neo-antigens predicted by tumor genome meta-analysis correlate with increased patient survival. Genome Res. 2014 May; 24(5):743-50).

Nevertheless, the number of human tumor antigens on which cancer vaccines can be developed is limited. In particular, antigens derived from mutated or modified self-proteins may induce immune tolerance and/or undesired autoimmunity side effects.

There is thus a need in the art to identify alternative cancer therapeutics, which can overcome the limitations encountered in this field, notably resistance to immunotherapies that are currently available.

The invention has for objective to meet the aforementioned needs.

SUMMARY OF THE INVENTION

The invention relates to an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, and wherein the said peptides are selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242. An antigenic peptide according to the invention can be in the form of an immunogenic compound.

Thus, according to certain embodiments, the invention relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2 which are selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242, and in particular selected in the group consisting of SEQ ID NO 31, 64, 178 and 212.

In particular, the present invention relates to an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, and wherein the antigenic peptide has an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192. In other words, the present invention relates to an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192.

Accordingly, the present invention relates also to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, wherein the antigenic peptide is a peptide or polypeptide of sequence SEQ ID NO 31 or SEQ ID NO 192. In other words, the present invention relates to an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192.

More particularly, the invention relates to an immunogenic compound as defined above, wherein the said antigenic peptide is linked to a carrier protein.

The present invention relates also to a nanoparticle loaded with at least antigenic peptide according to the present invention or with at least one immunogenic compound according to the present invention, and, optionally, with an adjuvant.

The invention also relates to a composition comprising an antigenic peptide or an immunogenic compound as above defined, the said composition preferably further comprising one or more pharmaceutically acceptable excipients.

Thus, according to certain embodiments, the invention relates to an immunogenic composition comprising an antigenic peptide or an immunogenic compound as above defined and one or more pharmaceutically acceptable excipients,

Preferably, the said immunogenic composition may further comprise one or more immunostimulatory agents.

The said one or more immunostimulatory agents may be selected in a group comprising (or consisting of) immuno-adjuvants and antigen-presenting cells.

The said antigen-presenting cells may consist of dendritic cells.

According to other embodiments, the invention relates to an antigenic peptide as above defined or an immunogenic compound as above defined, for use in the prevention or in the treatment of a cancer.

According to further embodiments, the invention relates to an immunogenic composition for use in the prevention or in the treatment of a cancer.

This invention also pertains to the use of an antigenic peptide as above defined or of an immunogenic compound as above defined, for preparing a medicament for treating or preventing a cancer.

This invention also concerns a method for preventing or treating a cancer in an individual in need thereof, wherein the said method comprises a step of administering to the said individual an antigenic peptide as above defined or an immunogenic compound as above defined or an immunogenic composition as above defined or a nanoparticle according to the present invention or a nucleic acid according to the present invention or a combination according to the present invention.

According to yet further embodiments, the invention relates to a nucleic acid coding for an antigenic peptide or an immunogenic compound as above defined.

Furthermore, the present invention also relates to a combination of

(i) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192 for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 31 and

(ii) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 192 for use in the prevention and/or treatment of a cancer.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are comprised in the same or distinct compositions.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are administered via the same or distinct routes of administration.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are administered at about the same time or consecutively.

Furthermore, the present invention also relates to a kit comprising

-   -   an immunogenic compound according to the present invention,     -   an antigenic peptide according to the present invention,     -   a nanoparticle according to the present invention,     -   a nucleic acid according to the present invention, or     -   an immunogenic composition according to the present invention.

For example, the present invention provides the following items:

1. An immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, the said antigenic peptide being selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242.

2. The immunogenic compound according to item 1, wherein the antigenic peptide is selected in the group consisting of SEQ ID NO 31, 64, 178 and 212.

3. The immunogenic compound according to item 1, wherein the antigenic peptide is a peptide or polypeptide of sequence SEQ ID NO 31.

4. The immunogenic compound according to any one of items 1 to 3, wherein the antigenic peptide is linked to a carrier protein.

5. The immunogenic compound according to any one of items 1 to 4, comprising or consisting of an antigenic peptide of formula (I):

PepNt-CORE-PepCt  (I), wherein:

-   -   “PepNt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         N-terminal end of the polypeptide of formula (I);     -   CORE consists of a polypeptide comprising, or alternatively         consisting of, an amino acid sequence selected from the group         consisting of SEQ ID NO: 1 to 242; and     -   “PepCt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         C-terminal end of the polypeptide of formula (I).

6. An immunogenic composition comprising an immunogenic compound according to any one of items 1 to 5, and one or more pharmaceutically acceptable excipients.

7. The immunogenic composition according to item 6, further comprising one or more immunostimulatory agents.

8. The immunogenic composition according to any one of items 6 or 7, wherein the said immunostimulatory agent is selected in a group consisting of immuno-adjuvants and antigen-presenting cells.

9. The immunogenic composition according to item 8, wherein the antigen-presenting cells consist of dendritic cells.

10. An immunogenic compound according to any one of items 1 to 5 or an immunogenic composition according to any one of items 6 to 9, for use in the prevention or in the treatment of a cancer.

11. The immunogenic compound according to any one of items 1 to 5 or the immunogenic composition according to any one of items 6 to 9, for use in the prevention or in the treatment of a cancer according to item 10, wherein the said cancer is selected in the group consisting of: melanoma, colorectal cancer or clear cell renal cell carcinoma.

12. A nucleic acid coding for an antigenic peptide having amino acid similarity with a tumor antigen, wherein the said antigenic peptide is selected in the group consisting of:

-   -   antigenic peptides having amino acid similarity with the tumor         antigen IL13RA2, which peptides are selected from the group         consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular         in the group consisting of SEQ ID NO 1 to 242; and/or     -   Antigenic peptides of formula (I) as defined in item 5.

13. The nucleic acid according to item 12, wherein the said peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, which peptides are selected in the group consisting of SEQ ID NO 31, 64, 178 and 212.

DESCRIPTION OF THE FIGURES

FIG. 1 : General protocol for the validation of the Proof-of-concept of a tumor antigen-based immunotherapy targeting IL13RA2.

FIG. 2 : Schematic view of the Immunization scheme. d: day.

FIG. 3 : ELISPOT-IFNγ results for group 1 (IL13RA2-B) and group 2 (IL13RA2-A). The peptide used for vaccination (in between brackets under each group) and the stimulus used in the ELISPOT culture (X-axis) are indicated on the graphs. (A) Number of specific ELISPOT-IFNγ spots (medium condition subtracted). Each dot represents the average value for one individual/mouse from the corresponding condition quadruplicate. (B) For each individual, the level of specific ELISPOT-IFNγ response is compared to the ConA stimulation (value: 100%). Statistical analysis: paired t-test for intra-group comparison and unpaired t-test for inter-group comparison; * p<0.05.

FIG. 4 : shows the results of Example 3.

FIG. 5 : shows the results of Example 4.

DETAILED DESCRIPTION OF THE INVENTION

The inventors have identified a set of antigenic peptides that can be used to induce a specific immune response against tumor cells.

Those antigenic peptides all share the property of having amino acid similarity with IL13RA2.

The Interleukin-13 receptor subunit alpha-2 (IL-13Rα2 or IL13RA2) is a membrane bound protein that in humans is encoded by the IL13RA2 gene. In a non-exhaustive manner, IL13RA2 has been reported as a potential immunotherapy target (see Beard et al.; Clin Cancer Res; 72(11); 2012). The high expression of IL13RA2 has further been associated with invasion, liver metastasis and poor prognosis in colorectal cancer (Barderas el al.; Cancer Res; 72(11); 2012).

Accordingly, the invention relates to antigenic peptides having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, wherein the said antigenic peptides are selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242.

The expressions “having amino acid similarity with a tumor antigen”/“having amino acid similarity with IL13RA2”, as used herein, refer in particular to sequence variants of fragments of a tumor antigen or IL13RA2, respectively.

A sequence variant shares, in particular over the whole length of the sequence, at least 50% sequence identity with a reference sequence, namely, a fragment of a tumor antigen or IL13RA2, respectively. Preferably, the sequence variant shares at least 60%, preferably at least 70%, preferably at least 75%, more preferably at least 80%, even more preferably at least 85%, still more preferably at least 90%, particularly preferably at least 95%, and most preferably at least 99% sequence identity with a reference sequence, namely, a fragment of a tumor antigen or IL13RA2, respectively. Sequence identity may be calculated as described below. Preferably, a sequence variant preserves the specific function of the reference sequence, for example its function as epitope. In particular, an amino acid sequence variant has an altered sequence in which one or more of the amino acids in the reference sequence is deleted or substituted, or one or more amino acids are inserted into the sequence of the reference amino acid sequence. For example, variant sequences which are at least 90% identical have no more than 10 alterations, i.e. any combination of deletions, insertions or substitutions, per 100 amino acids of the reference sequence.

Methods for comparing the identity (similarity) of two or more sequences are well known in the art. The percentage to which two sequences are identical can, e.g., be determined using a mathematical algorithm. A preferred, but not limiting, example of a mathematical algorithm which can be used is the algorithm of Karlin et al. (1993), PNAS USA, 90:5873-5877. Such an algorithm is integrated in the BLAST family of programs, e.g. BLAST or NBLAST program (see also Altschul et al., 1990, J. Mol. Biol. 215, 403-410 or Altschul et al. (1997), Nucleic Acids Res, 25:3389-3402), accessible through the home page of the NCBI at world wide web site ncbi.nlm.nih.gov) and FASTA (Pearson (1990), Methods Enzymol. 183, 63-98; Pearson and Lipman (1988), Proc. Natl. Acad. Sci. U.S.A 85, 2444-2448). Sequences which are identical to other sequences to a certain extent can be identified by these programmes. Furthermore, programs available in the Wisconsin Sequence Analysis Package, version 9.1 (Devereux et al., 1984, Nucleic Acids Res., 387-395), for example the programs BESTFIT and GAP, may also be used to determine the % identity between two polynucleotides and the % identity between two (poly)peptide sequences. BESTFIT uses the “local homology” algorithm of Smith and Waterman (1981), J. Mol. Biol. 147, 195-197 and finds the best single region of similarity between two sequences.

The “fragment” of a tumor antigen or IL13RA2, which typically serves as reference sequence, comprises at least seven, preferably at least eight and most preferably (at least) nine amino acids or ten amino acids.

Advantageously, those antigenic peptides may be in the form of immunogenic compounds, in particular for use in the prevention or in the treatment of a cancer.

Thus, the invention also relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, wherein the said antigenic peptides are selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242.

In particular, the present invention provides an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, and wherein the antigenic peptide has an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192. In other words, the present invention provides an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192. Accordingly, the present invention provides an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, wherein the antigenic peptide is a peptide or polypeptide of sequence SEQ ID NO 31 or SEQ ID NO 192. In particular, the present invention provides an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192. Preferably, the antigenic peptide has an amino acid sequence as set forth in SEQ ID NO 31. It is also preferred that the antigenic peptide has an amino acid sequence as set forth in SEQ ID NO 192.

As shown in the examples herein, the said specific antigenic peptides according to the present invention allow the raise of a strong immune response against themselves, and most importantly, allow the raise of a strong immune response against peptides having amino acid similarity therewith which are comprised in the IL13RA2 tumor antigen, although the said peptides comprised in the IL13RA2 tumor antigen are themselves tolerogenic.

Without wishing to be bound by any particular theory, the inventors believe that the high expression of gamma interferon which has been measured after an in vivo administration of an immunogenic composition comprising an antigenic peptide described herein illustrates the activation of antigenic peptide-specific T-cells, and especially the activation of antigenic peptide-specific CTLs, which cells are known in the art to be relevant immune effectors of an anti-cancer immune response.

Unless otherwise defined herein, scientific and technical terms used in connection with the present invention shall have the meanings that are commonly understood by those of ordinary skill in the art. Further, unless otherwise required by context, nomenclatures used herein, and techniques of cell and tissue culture are those well-known and commonly used in the art.

Such techniques are fully explained in the literature, such as Owen et al. (Kuby Immunology, 7^(th), edition, 2013—W. H. Freeman) and Sambrook et al. (Molecular cloning: A laboratory manual 4th edition, Cold Spring Harbor Laboratory Press—Cold Spring Harbor, N.Y., USA, 2012).

Nevertheless, with respect to the use of different terms throughout the current specification, the following definitions more particularly apply.

The terms “peptide”, “polypeptide” and “protein” refer herein to a sequential chain of amino acids of any length linked together via peptide bonds (—NHCO—), and which can play a structural and/or functional role in a cell in vitro and/or in vivo. It encompasses amino acids chains in size ranging from 2 to at least about 1000 amino acid residues. The term “peptide” preferably encompasses herein amino acid chains in size of less than about 30 amino acids, while the terms “polypeptide” and “protein” preferably encompass amino acid chains in size of at least 30 amino acids. The terms “polypeptide” and “protein” are used herein interchangeably. As well-known in the art, peptides, polypeptides and proteins can be encoded by nucleic acids.

The term “antigenic peptide” refers to a peptide, which preferably has amino acid similarity with a tumor protein, and which is prone to induce or maintain an immunological response against said peptide in a subject to whom it is administered.

The term “immunogenic compound” refers to a compound comprising an antigenic peptide as defined above, which is also able to induce or maintain an immunological response against said peptide in a subject to whom it is administered.

In some embodiments, immunogenic compounds comprise at least one antigenic peptide, or alternatively at least one compound comprising such an antigenic peptide, linked to a protein, which encompasses a carrier protein.

A carrier protein is usually a protein, which is able to transport a cargo, such as the antigenic peptide according to the present invention. For example, the carrier protein may transport its cargo across a membrane. In the context of the present invention, a carrier protein in particular (also) encompasses a peptide or a polypeptide that is able to elicit an immune response against the antigenic peptide that is linked thereto. Carrier proteins are known in the art.

In some embodiments, an antigenic peptide as described herein, or a polypeptide comprising the said antigenic peptide, may be linked, for example by covalent or non-covalent bond, to a protein having immuno-adjuvant properties, such as the HHD-DR3 peptide of sequence MAKTIAYDEEARRGLERGLN (SEQ ID NO 266).

Alternatively such carrier peptide or polypeptide may be co-administered in the form of immune adjuvant.

Preferably, the antigenic peptide as described herein, or a polypeptide comprising the antigenic peptide, may be co-administrated or linked, for example by covalent or non-covalent bond, to a protein/peptide having immuno-adjuvant properties, such as providing stimulation of CD4+Th1 cells. While the antigenic peptide as described herein preferably binds to MHC class I, CD4+ helper epitopes may be additionally used to provide an efficient immune response. Th1 helper cells are able to sustain efficient dendritic cell (DC) activation and specific CTL activation by secreting interferon-gamma (IFN-7), tumor necrosis factor-alpha (TNF-α) and interleukine-2 (IL-2) and enhancing expression of costimulatory signal on DCs and T cells (Galaine et al., Interest of Tumor-Specific CD4 T Helper 1 Cells for Therapeutic Anticancer Vaccine. Vaccines (Basel). 2015 Jun. 30; 3(3):490-502).

For example, the adjuvant peptide/protein may preferably be a non-tumor antigen that recalls immune memory or provides a non-specific help or could be a specific tumor-derived helper peptide. Several helper peptides have been described in the literature for providing a nonspecific T cell help, such as tetanus helper peptide, keyhole limpet hemocyanin peptide or PADRE peptide (Adotévi et al., Targeting antitumor CD4 helper T cells with universal tumor-reactive helper peptides derived from telomerase for cancer vaccine. Hum Vaccin Immunother. 2013 May; 9(5):1073-7, Slingluff CL, The present and future of peptide vaccines for cancer: single or multiple, long or short, alone or in combination? Cancer J. 2011 September-October; 17(5):343-50). Accordingly, tetanus helper peptide, keyhole limpet hemocyanin peptide and PADRE peptide are preferred examples of such adjuvant peptide/proteins. Moreover, specific tumor derived helper peptides are preferred. Specific tumor derived helper peptides are typically presented by MHC class II, in particular by HLA-DR, HLA-DP or HLA-DQ. Specific tumor derived helper peptides may be fragments of sequences of shared overexpressed tumor antigens, such as HER2, NY-ESO-1, hTERT or IL13RA2. Such fragments have preferably a length of at least 10 amino acids, more preferably of at least 11 amino acids, even more preferably of at least 12 amino acids and most preferably of at least 13 amino acids. In particular, fragments of shared overexpressed tumor antigens, such as HER2, NY-ESO-1, hTERT or IL13RA2, having a length of 13 to 24 amino acids are preferred. Preferred fragments bind to MHC class II and may, thus, be identified using, for example, the MHC class II binding prediction tools of IEDB (Immune epitope database and analysis resource; Supported by a contract from the National Institute of Allergy and Infectious Diseases, a component of the National Institutes of Health in the Department of Health and Human Services; URL: http://www.iedb.org/; http://tools.iedb.org/mhcii/).

A composition as defined herein which comprises an immunogenic compound as defined above, and which further comprises one or more immuno-adjuvant substances, may also be termed an “immunogenic composition” or in some embodiments a “vaccine composition” in the present specification.

As used herein, the term “immunogenic composition” refers to a composition that is able to induce or maintain an immune response, in particular which induces an immune response, when it is administered to a mammal, and especially when it is administered to a human individual.

The terms “nucleic acid”, “nucleic acid molecule”, “nucleic acid sequence”, “polynucleotide”, “nucleotide sequence”, which are used herein interchangeable, refer to a precise succession of natural nucleotides (e.g., A, T, G, C and U), or synthetic nucleotides, corresponding to a single-stranded or double-stranded DNA or RNA, such as cDNA, genomic DNA, ribosomal DNA, and the transcription product of said DNA, such as RNA, rRNA, mRNA; antisense DNA, antisense RNA; complimentary RNA and/or DNA sequences; RNA and/or DNA sequences with or without expression elements, regulatory elements, and/or promoters; a vector; and combinations thereof. It is within the skill of the person in the art to determine nucleotide sequences which can encode a specific amino acid sequence.

The (poly)peptides and/or nucleic acids according to the invention may be prepared by any known method in the art including, but not limited to, any synthetic method, any recombinant method, any ex vivo generation method and the like, and any combination thereof. Such techniques are fully explained in the literature as mentioned above.

In the context of the present invention, the antigenic peptides according to the invention comprise antigens having similarity with a tumor antigen. As used herein, the term “tumor antigen” comprises tumor-specific antigens and tumor-associated antigens.

In general, the term “tumor antigen” or “tumor protein” designates herein an antigenic substance produced in tumor cells, and sometimes also in normal cells, and which can trigger an immune response upon administration in a subject. In humans, those have been classified according to their expression pattern, function or genetic origin, and include without limitation, overexpressed self-antigens (such as HER2/neu and its variant dHER2, p53, Wilm's Tumor 1, Ephrin receptor, Proteinase-3, Mucin-1, Mesothelin, EGFR CD20); cancer-testis (CT) antigens (such as MAGE-1, BAGE, GAGE, NY-ESO-1); mutational antigens, also known as neo-antigens (such as mutants from MUM-1, ber-abl, ras, b-raf, p53, CDK-4, CDC27, beta-catenin, alpha-actenin-4); tissue-specific differentiation antigens (such as the melanoma antigens Melan A/MART-1, tyrosinase, TRP1/pg75, TRP2, gp100 and gangliosides GM3, GM2, GD2 and GD3; the prostate cancer antigens PSMA, PSA and PAP); viral antigens which are expressed by oncoviruses (such as HPV, EBV); oncofetal antigens (such as alphafetoprotein AFP and carcinoembryonic antigen CEA); and universal antigens (telomerase, hTERT, survivin, mdm-2, CYP-1B1) (Srinivasan and Wolchok, Tumor antigens for cancer immunotherapy: therapeutic potential of xenogeneic DNA vaccines. J Transl Med. 2004 Apr. 16; 2(1):12).

According to the different aspects and embodiments of the invention described herein, a “subject” or “host” preferably refers to a mammal, and most preferably to a human being. Said subject may have, been suspected of having, or be at risk of developing cancer, for example melanoma, colorectal cancer or clear cell renal cell carcinoma.

By “pharmaceutically acceptable excipient”, it is meant herein a compound of pharmaceutical grade which improves the delivery, stability or bioavailability of an active agent, and can be metabolized by, and is non-toxic to, a subject to whom it is administered. Preferred excipients according to the invention include any of the excipients commonly used in pharmaceutical products, such as, for example, water, saline, phosphate buffered saline, dextrose, glycerol, ethanol and the like, as well as combinations thereof. In many cases, it will be preferable to include isotonic agents, for example, sugars, polyalcohols such as mannitol, sorbitol, or sodium chloride in the composition. Pharmaceutically acceptable excipients may further comprise minor amounts of auxiliary substances such as wetting or emulsifying agents, or preservatives.

By “vaccine”, it is meant herein a composition capable of stimulating the immune system of a living organism so that protection against a harmful antigen is provided, either through prophylaxis or through therapy.

The term “cancer”, as used herein, refers to a malignant neoplasm. In particular, the term “cancer” refers herein to any member of a class of diseases or disorders that are characterized by uncontrolled division of cells and the ability of these cells to invade other tissues, either by direct growth into adjacent tissue through invasion or by implantation into distant sites by metastasis. Metastasis is defined as the stage in which cancer cells are transported through the bloodstream or lymphatic system. It encompasses, among others, esophageal cancer, gastric cancer, duodenal cancer, small intestinal cancer, appendiceal cancer, large bowel cancer, colon cancer, rectum cancer, colorectal cancer, anal cancer, pancreatic cancer, liver cancer, gallbladder cancer, spleen cancer, renal cancer, bladder cancer, prostatic cancer, testicular cancer, uterine cancer, endometrial cancer, ovarian cancer, vaginal cancer, vulvar cancer, breast cancer, pulmonary cancer, thyroid cancer, thymus cancer, brain cancer, nervous system cancer, oral cavity cancer, skin cancer, blood cancer, lymphomas, eye cancer, bone cancer, bone marrow cancer, muscle cancer, etc. . . . . In the context of the present invention, melanoma, head and neck, breast, colorectal cancer or clear cell renal cell carcinoma are preferred.

As used herein, the term “preventing”, “prevention”, “prophylaxis” or “prevent” generally means to avoid or minimize the onset or development of a disease or condition before its onset, while the term “treating, “treatment” or “treat” encompasses reducing, ameliorating or curing a disease or condition (or symptoms of a disease or condition) after its onset. In the context of the invention, the prevention and/or treatment of cancer can lead, for example, to the non-proliferation, weak, reduced or delayed proliferation of tumor cells within the subject, or to the complete or almost complete elimination of tumor cells within the subject. The term “preventing” encompasses “reducing the likelihood of occurrence of” or «reducing/he likelihood of reoccurrence».

An “effective amount” or “effective dose” as used herein is an amount which provides the desired effect. For therapeutic purposes, an effective amount is an amount sufficient to provide a beneficial or desired clinical result. The preferred effective amount for a given application can be easily determined by the skilled person taking into consideration, for example, the size, age, weight of the subject, the type of cancer to be prevented or treated, and the amount of time since the cancer began. In the context of the present invention, in terms of prevention or treatment, an effective amount of the composition is an amount that is sufficient to induce a humoral and/or cell-mediated immune response directed against cancer.

As used herein, the term “comprising” encompasses “consisting of”.

Additional definitions are provided throughout the specification.

The present invention may be understood more readily by reference to the following detailed description, including preferred embodiments of the invention, and examples included herein.

Thus, the invention relates to an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with IL13RA2, and wherein the antigenic peptide has an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192. In other words, the present invention relates to an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192.

The present invention also relates to an immunogenic compound comprising an antigenic peptide having amino acid similarity with a tumor antigen, which antigenic peptide is selected in the group consisting of peptides having amino acid similarity with the tumor antigen IL13RA2, wherein the said antigenic peptide is selected from the group consisting of SEQ ID NO 1 to 242 and 267 to 274, in particular in the group consisting of SEQ ID NO 1 to 242.

In particular, the antigenic peptide as above defined may be selected in the group consisting of SEQ ID NO 31, 64, 178 and 212.

According to a preferred exemplary embodiment, the antigenic peptide as above defined is a peptide of sequence SEQ ID NO 31 or a peptide of sequence SEQ ID NO 192. In other words, the present invention also relates to an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 or SEQ ID NO 192.

According to one embodiment, the antigenic peptide as above defined, or a polypeptide comprising the said antigenic peptide, is linked to a carrier protein, for example by a covalent or non-covalent bond.

According some embodiments, the invention relates to an immunogenic compound as above defined, comprising an antigenic peptide of formula (I):

PepNt-CORE-PepCt  (I), wherein:

-   -   “PepNt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         N-terminal end of the polypeptide of formula (I);     -   CORE consists of a polypeptide comprising, or alternatively         consisting of, an amino acid sequence selected from the group         consisting of SEQ ID NO: 1 to 242, in particular an amino acid         sequence as set forth in SEQ ID NO: 31 or SEQ ID NO 192; and     -   “PepCt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         C-terminal end of the polypeptide of formula (I).         Preferably, the antigenic peptide of formula (I) is a fusion         peptide or fusion protein, in particular a recombinant fusion         peptide or protein. The term “recombinant” means that it does         not occur in nature.

The invention further relates to a nanoparticle loaded with

-   -   at least one of the immunogenic compounds according to the         present invention, or     -   at least one of the antigenic peptides according to the present         invention;

and, optionally, with an adjuvant

The invention further relates to an immunogenic composition comprising

-   -   an immunogenic compound according to the present invention,     -   an antigenic peptide according to the present invention,     -   a nanoparticle according to the present invention, or     -   a nucleic acid according to the present invention,

and one or more pharmaceutically acceptable excipients.

The immunogenic composition may further comprise one or more immunostimulatory agents.

In particular, the said immunostimulatory agent is selected in a group consisting of immuno-adjuvants and antigen-presenting cells.

More particularly, the antigen-presenting cells may consist of dendritic cells.

In particular, the immunogenic composition may comprise

(i) an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192;

(ii) an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192;

(iii) a nanoparticle loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and a nanoparticle loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192; or

(iv) a nucleic acid comprising a polynucleotide encoding an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and a nucleic acid comprising a polynucleotide encoding an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192.

The invention further relates to any one of

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the (host) cell according to the present invention,     -   the nanoparticle according to the present invention,     -   the nucleic acid according to the present invention, or     -   the immunogenic composition according to the present invention,

for use in the prevention or in the treatment of a cancer.

Diseases associated with IL13RA2 include colorectal cancer, ovarian cancer, testis cancer, renal cell carcinoma, prostate cancer, glioma, head and neck cancer, astrocytoma, melanoma, and breast cancer metastasis. These types of cancer are therefore preferred.

In particular, the cancer may be selected from the group consisting of: melanoma, colorectal cancer or clear cell renal cell carcinoma.

The invention further relates to a nucleic acid coding for an antigenic peptide having amino acid similarity with a tumor antigen, wherein the peptide is selected in the group consisting of:

-   -   antigenic peptides having amino acid similarity with IL13RA2         which are selected from the group consisting of SEQ ID NO 1 to         242 and 267 to 274, in particular in the group consisting of SEQ         ID NO 1 to 242; and/or     -   antigenic peptides of formula (I), or (Ia), or (Ib), as         described herein.

In particular, the nucleic acid as defined above may code for an antigenic peptide selected in the group consisting of peptides having amino acid similarity with the tumor antigen IL13RA2 which are selected in the group consisting of SEQ ID NO 31, 64, 178 and 212; which includes SEQ ID NO 31.

The invention also concerns a method for preventing or treating a cancer or initiating, enhancing or prolonging an anti-tumor-response in a subject in need thereof comprising administering to the subject an antigenic peptide according to the present invention or an immunogenic compound according to the present invention or an immunogenic composition according to the present invention or a nanoparticle according to the present invention or a nucleic acid according to the present invention or a combination according to the present invention.

Furthermore, the invention relates to a nucleic acid coding for an antigenic peptide or an immunogenic compound as above defined.

Furthermore, the present invention also relates to a combination of

(i) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 192 for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

The present invention relates also to a combination of

(i) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 31 and

(ii) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are comprised in the same or distinct compositions.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are administered via the same or distinct routes of administration.

In certain embodiments, components (i) and (ii) of the combination for use according to the present invention are administered at about the same time or consecutively.

Furthermore, the present invention also relates to a kit comprising

-   -   an immunogenic compound according to the present invention,     -   an antigenic peptide according to the present invention,     -   a (host) cell according to the present invention,     -   a nanoparticle according to the present invention,     -   a nucleic acid according to the present invention, or     -   an immunogenic composition according to the present invention.

Antigenic Peptides, Immunogenic Compounds, Nucleic Acids, Nanoparticles and Cells

Unless reference to the contrary, all the passages referring to «antigenic peptides» may also be applied to «immunogenic compounds».

Antigenic peptides according to the invention are listed in Table 1 below, which also provides information regarding the corresponding reference tumor antigens (epitopes) derived from IL13RA2 in humans, and HLA class. The sequence IDs SEQ ID NO 1 to 242 refer to the antigenic peptide.

TABLE 1 Antigenic peptides according to the invention Antigenic SEQ ID NO. Peptide Reference HLA 1 ALGCLYTFV AIGCLYTFL HLA-A*02:01 2 AMGCLYTFI AIGCLYTFL HLA-A*02:01 3 AMGCLYTFV AIGCLYTFL HLA-A*02:01 9 FIGCLYTFI AIGCLYTFL HLA-A*02:01 10 FIGCLYTFL AIGCLYTFL HLA-A*02:01 11 FIGCLYTFV AIGCLYTFL HLA-A*02:01 24 FLGCLYTFI AIGCLYTFL HLA-A*02:01 25 FLGCLYTFL AIGCLYTFL HLA-A*02:01 26 FLGCLYTFV AIGCLYTFL HLA-A*02:01 57 FMGCLYTFI AIGCLYTFL HLA-A*02:01 58 FMGCLYTFL AIGCLYTFL HLA-A*02:01 59 FMGCLYTFV AIGCLYTFL HLA-A*02:01 111 WLGCLYTFI AIGCLYTFL HLA-A*02:01 112 WLGCLYTFL AIGCLYTFL HLA-A*02:01 113 WLGCLYTFV AIGCLYTFL HLA-A*02:01 130 WMGCLYTFI AIGCLYTFL HLA-A*02:01 131 WMGCLYTFL AIGCLYTFL HLA-A*02:01 132 WMGCLYTFV AIGCLYTFL HLA-A*02:01 158 YIGCLYTFI AIGCLYTFL HLA-A*02:01 159 YIGCLYTFL AIGCLYTFL HLA-A*02:01 160 YIGCLYTFV AIGCLYTFL HLA-A*02:01 171 YLGCLYTFI AIGCLYTFL HLA-A*02:01 172 YLGCLYTFL AIGCLYTFL HLA-A*02:01 173 YLGCLYTFV AIGCLYTFL HLA-A*02:01 204 YMGCLYTFI AIGCLYTFL HLA-A*02:01 205 YMGCLYTFL AIGCLYTFL HLA-A*02:01 206 YMGCLYTFV AIGCLYTFL HLA-A*02:01 89 FSDYKDFYI ASDYKDFYI HLA-A*01:01 90 FSDYKDFYL ASDYKDFYI HLA-A*01:01 91 FSDYKDFYV ASDYKDFYI HLA-A*01:01 153 WSDYKDFYI ASDYKDFYI HLA-A*01:01 154 WSDYKDFYL ASDYKDFYI HLA-A*01:01 155 WSDYKDFYV ASDYKDFYI HLA-A*01:01 237 YSDYKDFYI ASDYKDFYI HLA-A*01:01 238 YSDYKDFYL ASDYKDFYI HLA-A*01:01 239 YSDYKDFYV ASDYKDFYI HLA-A*01:01 4 CMYTFLISV CLYTFLIST HLA-A*02:01 42 FLYTFLISI CLYTFLIST HLA-A*02:01 43 FLYTFLISL CLYTFLIST HLA-A*02:01 44 FLYTFLIST CLYTFLIST HLA-A*02:01 45 FLYTFLISV CLYTFLIST HLA-A*02:01 78 FMYTFLISI CLYTFLIST HLA-A*02:01 79 FMYTFLISL CLYTFLIST HLA-A*02:01 80 FMYTFLIST CLYTFLIST HLA-A*02:01 81 FMYTFLISV CLYTFLIST HLA-A*02:01 123 WLYTFLISV CLYTFLIST HLA-A*02:01 144 WMYTFLISI CLYTFLIST HLA-A*02:01 145 WMYTFLISL CLYTFLIST HLA-A*02:01 146 WMYTFLISV CLYTFLIST HLA-A*02:01 190 YLYTFLISI CLYTFLIST HLA-A*02:01 191 YLYTFLISL CLYTFLIST HLA-A*02:01 192 YLYTFLIST CLYTFLIST HLA-A*02:01 193 YLYTFLISV CLYTFLIST HLA-A*02:01 226 YMYTFLISI CLYTFLIST HLA-A*02:01 227 YMYTFLISL CLYTFLIST HLA-A*02:01 228 YMYTFLIST CLYTFLIST HLA-A*02:01 229 YMYTFLISV CLYTFLIST HLA-A*02:01 5 CSDDGIWSI CSDDGIWSE HLA-A*01:01 6 CSDDGIWSL CSDDGIWSE HLA-A*01:01 7 CSDDGIWSV CSDDGIWSE HLA-A*01:01 16 FLDDGIWSI CSDDGIWSE HLA-A*01:01 17 FLDDGIWSL CSDDGIWSE HLA-A*01:01 18 FLDDGIWSV CSDDGIWSE HLA-A*01:01 49 FMDDGIWSI CSDDGIWSE HLA-A*01:01 50 FMDDGIWSL CSDDGIWSE HLA-A*01:01 51 FMDDGIWSV CSDDGIWSE HLA-A*01:01 83 FSDDGIWSI CSDDGIWSE HLA-A*01:01 84 FSDDGIWSL CSDDGIWSE HLA-A*01:01 85 FSDDGIWSV CSDDGIWSE HLA-A*01:01 107 WLDDGIWSI CSDDGIWSE HLA-A*01:01 108 WLDDGIWSL CSDDGIWSE HLA-A*01:01 109 WLDDGIWSV CSDDGIWSE HLA-A*01:01 125 WMDDGIWSI CSDDGIWSE HLA-A*01:01 126 WMDDGIWSL CSDDGIWSE HLA-A*01:01 127 WMDDGIWSV CSDDGIWSE HLA-A*01:01 147 WSDDGIWSI CSDDGIWSE HLA-A*01:01 148 WSDDGIWSL CSDDGIWSE HLA-A*01:01 149 WSDDGIWSV CSDDGIWSE HLA-A*01:01 163 YLDDGIWSI CSDDGIWSE HLA-A*01:01 164 YLDDGIWSL CSDDGIWSE HLA-A*01:01 165 YLDDGIWSV CSDDGIWSE HLA-A*01:01 196 YMDDGIWSI CSDDGIWSE HLA-A*01:01 197 YMDDGIWSL CSDDGIWSE HLA-A*01:01 198 YMDDGIWSV CSDDGIWSE HLA-A*01:01 231 YSDDGIWSI CSDDGIWSE HLA-A*01:01 232 YSDDGIWSL CSDDGIWSE HLA-A*01:01 233 YSDDGIWSV CSDDGIWSE HLA-A*01:01 8 FASDYKDFY EASDYKDFY HLA-A*01:01 32 FLSDYKDFY EASDYKDFY HLA-A*01:01 66 FMSDYKDFY EASDYKDFY HLA-A*01:01 105 WASDYKDFY EASDYKDFY HLA-A*01:01 117 WLSDYKDFY EASDYKDFY HLA-A*01:0I 137 WMSDYKDFY EASDYKDFY HLA-A*01:01 157 YASDYKDFY EASDYKDFY HLA-A*01:01 180 YLSDYKDFY EASDYKDFY HLA-A*01:01 214 YMSDYKDFY EASDYKDFY HLA-A*01:01 37 FLWKTIITK ETWKTIITK HLA-A*03:01 73 FMWKTIITK ETWKTIITK HLA-A*03:01 93 FTWKTIITK ETWKTIITK HLA-A*03:01 140 WMWKTIITK ETWKTIITK HLA-A*03:01 185 YLWKTIITK ETWKTIITK HLA-A*03:01 221 YMWKTIITK ETWKTIITK HLA-A*03:01 241 YTWKTIITK ETWKTIITK HLA-A*03:01 27 FLISTTFGI FLISTTFGC HLA-A*02:01 28 FLISTTFGL FLISTTFGC HLA-A*02:01 29 FLISTTFGV FLISTTFGC HLA-A*02:01 60 FMISTTFGI FLISTTFGC HLA-A*02:01 61 FMISTTFGL FLISTTFGC HLA-A*02:01 62 FMISTTFGV FLISTTFGC HLA-A*02:01 114 WLISTTFGL FLISTTFGC HLA-A*02:01 115 WLISTTFGV FLISTTFGC HLA-A*02:01 133 WMISTTFGI FLISTTFGC HLA-A*02:01 134 WMISTTFGL FLISTTFGC HLA-A*02:01 135 WMISTTFGV FLISTTFGC HLA-A*02:01 174 YLISTTFGI FLISTTFGC HLA-A*02:01 175 YLISTTFGL FLISTTFGC HLA-A*02:01 176 YLISTTFGV FLISTTFGC HLA-A*02:01 207 YMISTTFGI FLISTTFGC HLA-A*02:01 208 YMISTTFGL FLISTTFGC HLA-A*02:01 209 YMISTTFGV FLISTTFGC HLA-A*02:01 67 FMTGLLLRK FVTGLLLRK HLA-A*03:01 215 YMTGLLLRK FVTGLLLRK HLA-A*03:01 19 FLDFIALQCV GLDHALQCV HLA-A*02:01 52 FMDHALQCV GLDHALQCV HLA-A*02:01 166 YLDHALQCV GLDHALQCV HLA-A*02:01 199 YMDHALQCV GLDHALQCV HLA-A*02:01 69 FMVIFVTGV ILVIFVTGL HLA-A*02:01 217 YMVIFVTGV ILVIFVTGL HLA-A*02:01 65 FMQDMCVYY KVQDMCVYY HLA-A*01:01 94 FVQDMCVYY KVQDMCVYY HLA-A*01:01 156 WVQDMCVYY KVQDMCVYY HLA-A*01:01 179 YLQDMCVYY KVQDMCVYY HLA-A*01:01 213 YMQDMCVYY KVQDMCVYY HLA-A*01:01 242 YVQDMCVYY KVQDMCVYY HLA-A*01:01 33 FLTNYNLFY LDTNYNLFY HLA-A*01:01 68 FMTNYNLFY LDTNYNLFY HLA-A*01:01 95 LLTNYNLFY LDTNYNLFY HLA-A*01:01 97 LMTNYNLFY LDTNYNLFY HLA-A*01:01 118 WLTNYNLFY LDTNYNLFY HLA-A*01:01 138 WMTNYNLFY LDTNYNLFY HLA-A*01:01 181 YLTNYNLFY LDTNYNLFY HLA-A*01:01 216 YMTNYNLFY LDTNYNLFY HLA-A*01:01 13 FLCSWKPGI LLCSWKPGI HLA-A*02:01 14 FLCSWKPGL LLCSWKPGI HLA-A*02:01 15 FLCSWKPGV LLCSWKPGI HLA-A*02:01 46 FMCSWKPGI LLCSWKPGI HLA-A*02:01 47 FMCSWKPGL LLCSWKPGI HLA-A*02:01 48 FMCSWKPGV LLCSWKPGI HLA-A*02:01 106 WLCSWKPGV LLCSWKPGI HLA-A*02:01 124 WMCSWKPGV LLCSWKPGI HLA-A*02:01 162 YLCSWKPGV LLCSWKPGI HLA-A*02:01 194 YMCSWKPGI LLCSWKPGI HLA-A*02:01 195 YMCSWKPGV LLCSWKPGI HLA-A*02:01 38 FLWQPPLSI LQWQPPLSL HLA-A*02:01 39 FLWQPPLSL LQWQPPLSL HLA-A*02:01 40 FLWQPPLSV LQWQPPLSL HLA-A*02:01 74 FMWQPPLSI LQWQPPLSL HLA-A*02:01 75 FMWQPPLSL LQWQPPLSL HLA-A*02:01 76 FMWQPPLSV LQWQPPLSL HLA-A*02:01 82 FQWQPPLSV LQWQPPLSL HLA-A*02:01 96 LLWQPPLSV LQWQPPLSL HLA-A*02:01 98 LMWQPPLSI LQWQPPLSL HLA-A*02:01 99 LMWQPPLSL LQWQPPLSL HLA-A*02:01 100 LMWQPPLSV LQWQPPLSL HLA-A*02:01 120 WLWQPPLSI LQWQPPLSL HLA-A*02:01 121 WLWQPPLSL LQWQPPLSL HLA-A*02:01 122 WLWQPPLSV LQWQPPLSL HLA-A*02:01 141 WMWQPPLSI LQWQPPLSL HLA-A*02:01 142 WMWQPPLSL LQWQPPLSL HLA-A*02:01 143 WMWQPPLSV LQWQPPLSL HLA-A*02:01 186 YLWQPPLSI LQWQPPLSL HLA-A*02:01 187 YLWQPPLSL LQWQPPLSL HLA-A*02:01 188 YLWQPPLSV LQWQPPLSL HLA-A*02:01 222 YMWQPPLSI LQWQPPLSL HLA-A*02:01 223 YMWQPPLSL LQWQPPLSL HLA-A*02:01 224 YMWQPPLSV LQWQPPLSL HLA-A*02:01 230 YQWQPPLSV LQWQPPLSL HLA-A*02:01 12 FIVKPLPPV NIVKPLPPV HLA-A*02:01 34 FLVKPLPPI NIVKPLPPV HLA-A*02:01 35 FLVKPLPPL NIVKPLPPV HLA-A*02:01 36 FLVKPLPPV NIVKPLPPV HLA-A*02:01 70 FMVKPLPPI NIVKPLPPV HLA-A*02:01 71 FMVKPLPPL NIVKPLPPV HLA-A*02:01 72 FMVKPLPPV NIVKPLPPV HLA-A*02:01 119 WLVKPLPPV NIVKPLPPV HLA-A*02:01 139 WMVKPLPPV NIVKPLPPV HLA-A*02:01 161 YIVKPLPPV NIVKPLPPV HLA-A*02:01 182 YLVKPLPPI NIVKPLPPV HLA-A*02:01 183 YLVKPLPPL NIVKPLPPV HLA-A*02:01 184 YLVKPLPPV NIVKPLPPV HLA-A*02:01 218 YMVKPLPPI NIVKPLPPV HLA-A*02:01 219 YMVKPLPPL NIVKPLPPV HLA-A*02:01 220 YMVKPLPPV NIVKPLPPV HLA-A*02:01 21 FLFYWYEGI NLFYWYEGL HLA-A*02:01 22 FLFYWYEGL NLFYWYEGL HLA-A*02:01 23 FLFYWYEGV NLFYWYEGL HLA-A*02:01 54 FMFYWYEGI NLFYWYEGL HLA-A*02:01 55 FMFYWYEGL NLFYWYEGL HLA-A*02:01 56 FMFYWYEGV NLFYWYEGL HLA-A*02:01 110 WLFYWYEGV NLFYWYEGL HLA-A*02:01 129 WMFYWYEGV NLFYWYEGL HLA-A*02:01 168 YLFYWYEGI NLFYWYEGL HLA-A*02:01 169 YLFYWYEGL NLFYWYEGL HLA-A*02:01 170 YLFYWYEGV NLFYWYEGL HLA-A*02:01 201 YMFYWYEGI NLFYWYEGL HLA-A*02:01 202 YMFYWYEGL NLFYWYEGL HLA-A*02:01 203 YMFYWYEGV NLFYWYEGL HLA-A*02:01 92 FSSWAETTY QSSWAETTY HLA-A*01:01 240 YSSWAETTY QSSWAETTY HLA-A*01:01 101 RLIGSETWK RNIGSETWK HLA-A*03:01 102 RMIGSETWK RNIGSETWK HLA-A*03:01 210 YMLAIGCLY VCLAIGCLY HLA-A*01:01 30 FLNETYTLK VENETYTLK HLA-A*03:01 63 FMNETYTLK VENETYTLK HLA-A*03:01 103 VLNETYTLK VENETYTLK HLA-A*03:01 104 VMNETYTLK VENETYTLK HLA-A*03:01 116 WLNETYTLK VENETYTLK HLA-A*03:01 136 WMNETYTLK VENETYTLK HLA-A*03:01 177 YLNETYTLK VENETYTLK HLA-A*03:01 211 YMNETYTLK VENETYTLK HLA-A*03:01 31 FLPFGFILV WLPFGFILI HLA-A*02:01 64 FMPFGFILV WLPFGFILI HLA-A*02:01 178 YLPFGFILV WLPFGFILI HLA-A*02:01 212 YMPFGFILV WLPFGFILI HLA-A*02:01 41 FLYLLCSWK WQYLLCSWK HLA-A*03:01 77 FMYLLCSWK WQYLLCSWK HLA-A*03:01 189 YLYLLCSWK WQYLLCSWK HLA-A*03:01 225 YMYLLCSWK WQYLLCSWK HLA-A*03:01 20 FLDKQCWEV WSDKQCWEG HLA-A*01:01 53 FMDKQCWEV WSDKQCWEG HLA-A*01:01 86 FSDKQCWEI WSDKQCWEG HLA-A*01:01 87 FSDKQCWEL WSDKQCWEG HLA-A*01:01 88 FSDKQCWEV WSDKQCWEG HLA-A*01:01 128 WMDKQCWEV WSDKQCWEG HLA-A*01:01 150 WSDKQCWEI WSDKQCWEG HLA-A*01:01 151 WSDKQCWEL WSDKQCWEG HLA-A*01:01 152 WSDKQCWEV WSDKQCWEG HLA-A*01:01 167 YLDKQCWEV WSDKQCWEG HLA-A*01:01 200 YMDKQCWEV WSDKQCWEG HLA-A*01:01 234 YSDKQCWEI WSDKQCWEG HLA-A*01:01 235 YSDKQCWEL WSDKQCWEG HLA-A*01:01 236 YSDKQCWEV WSDKQCWEG HLA-A*01:01

Those 242 antigenic peptide sequences can be further defined based on the sequence of reference tumor antigen derived from IL13RA2.

Accordingly, those 242 antigenic peptides may be categorised in a plurality of distinct families according to their reference peptide:

-   -   Family «AIGCLYTFL» (SEQ ID NO 243), which family includes the         amino acid sequences of SEQ ID NO 1-3, 9-11, 24-26, 57-59,         111-113, 130-132, 158-160, 171-173, 204-206;     -   Family «ASDYKDFYI» (SEQ ID NO 244) which family includes the         amino acid sequences of SEQ ID NO 89-91, 153-155, 237-239;     -   Family «CLYTFLIST» (SEQ ID NO 245) which family includes the         amino acid sequences of SEQ ID NO 4, 42-45, 78-81, 123, 144-146,         190-193, 226-229;     -   Family «CSDDGIWSE» (SEQ ID NO 246) which family includes the         amino acid sequences of SEQ ID NO 5-7, 16-18, 49-51, 83-85,         107-109, 125-127, 147-149, 163-165, 197-198, 231-233;     -   Family «EASDYKDFY» (SEQ ID NO 247) which family includes the         amino acid sequences of SEQ ID NO 8, 32, 66, 105, 117, 137, 157,         180, 214;     -   Family «ETWKTIITK» (SEQ ID NO 248) which family includes the         amino acid sequences of SEQ ID NO 37, 73, 93, 140, 185, 221,         241;     -   Family «FLISTTFGC» (SEQ ID NO 249) which family includes the         amino acid sequences of SEQ ID NO 27-29, 60-62, 114-115,         133-135, 174-176, 207-209;     -   Family «FVTGLLLRK» (SEQ ID NO 250) which family includes the         amino acid sequences of SEQ ID NO 67, 215;     -   Family «GLDHALQCV» (SEQ ID NO 251) which family includes the         amino acid sequences of SEQ ID NO 19, 52, 166, 199;     -   Family «ILVIFVTGL» (SEQ ID NO 252) which family includes the         amino acid sequences of SEQ ID NO 69, 217;     -   Family «KVQDMCVYY» (SEQ ID NO 253) which family includes the         amino acid sequences of SEQ ID NO 65, 94, 156, 179, 213, 242;     -   Family «LDTNYNLFY» (SEQ ID NO 254) which family includes the         amino acid sequences of SEQ ID NO 33, 68, 95, 97, 118, 138, 181,         216;     -   Family «LLCSWKPGI» (SEQ ID NO 255) which family includes the         amino acid sequences of SEQ ID NO 13-15, 46-48, 106, 124, 162,         194-195;     -   Family «LQWQPPLSL» (SEQ ID NO 256) which family includes the         amino acid sequences of SEQ ID NO 38-40, 74-76, 82, 96-100,         120-122, 141-143, 186-188, 222-224, 230;     -   Family «NIVKPLPPV» (SEQ ID NO 257) which family includes the         amino acid sequences of SEQ ID NO 12, 34-36, 70-72, 119, 139,         161, 182-184, 218-220;     -   Family «NLFYWYEGL» (SEQ ID NO 258) which family includes the         amino acid sequences of SEQ ID NO 21-23, 54-56, 110, 129,         168-170, 201-203;     -   Family «QSSWAETTY» (SEQ ID NO 259) which family includes the         amino acid sequences of SEQ ID NO 92, 240;     -   Family «RNIGSETWK» (SEQ ID NO 260) which family includes the         amino acid sequences of SEQ ID NO 101, 102;     -   Family «VCLAIGCLY» (SEQ ID NO 261) including sequence SEQ ID NO         210;     -   Family «VENETYTLK» (SEQ ID NO 262) which family includes the         amino acid sequences of SEQ ID NO 30, 63, 103-104, 116, 136,         177, 211;     -   Family «WLPFGFILI» (SEQ ID NO 263) which family includes the         amino acid sequences of SEQ ID NO 31, 64, 178 and 212;     -   Family «WQYLLCSWK» (SEQ ID NO 264) which family includes the         amino acid sequences of SEQ ID NO 41, 77, 189, 225;     -   Family «WSDKQCWEG» (SEQ ID NO 265) which family includes the         amino acid sequences of SEQ ID NO 20, 53, 86-88, 128, 150-152,         167, 200, 234-236.

Accordingly, the antigenic peptide according to the present invention preferably belongs to the Family «AIGCLYTFL» (SEQ ID NO 243). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 1-3, 9-11, 24-26, 57-59, 111-113, 130-132, 158-160, 171-173, 204-206. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «ASDYKDFYI» (SEQ ID NO 244). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 89-91, 153-155, 237-239. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «CLYTFLIST» (SEQ ID NO 245). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 4, 42-45, 78-81, 123, 144-146, 190-193, 226-229. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «CSDDGIWSE» (SEQ ID NO 246). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 5-7, 16-18, 49-51, 83-85, 107-109, 125-127, 147-149, 163-165, 197-198, 231-233. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «EASDYKDFY» (SEQ ID NO 247). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 8, 32, 66, 105, 117, 137, 157, 180, 214. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «ETWKTIITK» (SEQ ID NO 248). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 37, 73, 93, 140, 185, 221, 241. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «FLISTTFGC» (SEQ ID NO 249). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 27-29, 60-62, 114-115, 133-135, 174-176, 207-209. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «FVTGLLLRK» (SEQ ID NO 250). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 67, 215. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «GLDHALQCV» (SEQ ID NO 251). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 19, 52, 166, 199. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «ILVIFVTGL» (SEQ ID NO 252). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 69, 217. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «KVQDMCVYY» (SEQ ID NO 253). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 65, 94, 156, 179, 213, 242. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «LDTNYNLFY» (SEQ ID NO 254). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 33, 68, 95, 97, 118, 138, 181, 216. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «LLCSWKPGI» (SEQ ID NO 255). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 13-15, 46-48, 106, 124, 162, 194-195. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «LQWQPPLSL» (SEQ ID NO 256). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 38-40, 74-76, 82, 96-100, 120-122, 141-143, 186-188, 222-224, 230. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «NIVKPLPPV» (SEQ ID NO 257). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 12, 34-36, 70-72, 119, 139, 161, 182-184, 218-220. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «NLFYWYEGL» (SEQ ID NO 258). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 21-23, 54-56, 110, 129, 168-170, 201-203. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «QSSWAETTY» (SEQ ID NO 259). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 92, 240. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «RNIGSETWK» (SEQ ID NO 260). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 101, 102. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «VCLAIGCLY» (SEQ ID NO 261). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 210. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «VENETYTLK» (SEQ ID NO 262). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 30, 63, 103-104, 116, 136, 177, 211. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «WLPFGFILI» (SEQ ID NO 263). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 31, 64, 178 and 212. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «WQYLLCSWK» (SEQ ID NO 264). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 41, 77, 189, 225. Moreover, the antigenic peptide according to the present invention preferably belongs to the Family «WSDKQCWEG» (SEQ ID NO 265). Accordingly, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in any one of SEQ ID NO 20, 53, 86-88, 128, 150-152, 167, 200, 234-236.

More preferably, the antigenic peptide of the invention is selected from the group consisting of peptides or polypeptides comprising or consisting of an amino acid sequence according to any one of SEQ ID NOs: 12, 19, 21, 22, 23, 27, 28, 29, 31, 34, 35, 36, 52, 54, 55, 56, 60, 61, 62, 64, 69, 70, 71, 72, 110, 114, 115, 119, 129, 133, 134, 135, 139, 161, 166, 168, 169, 170, 174, 175, 176, 178, 182, 183, 184, 199, 201, 202, 203, 207, 208, 209, 212, 217, 218, 219, and 220.

According to an even more preferred embodiment, an antigenic peptide of the invention is selected from the group consisting of peptides or polypeptides comprising, or consisting of, any one of the amino acid sequences SEQ ID NO: 31, 64, 178 and 212. Even more preferably, the antigenic peptide comprises or consists of an amino acid sequence according to SEQ ID NO: 31 or SEQ ID NO: 192.

According to a preferred exemplified embodiment, the antigenic peptide of the invention is a peptide or polypeptide comprising, or consisting of, the amino acid sequence of SEQ ID NO: 31. According to another preferred exemplified embodiment, the antigenic peptide of the invention is a peptide or polypeptide comprising, or consisting of, the amino acid sequence of SEQ ID NO: 192.

Moreover, the antigenic peptide preferably comprises or consists of an amino acid sequence as set forth in an one of SE ID NOs 267-274:

(SEQ ID NO: 267) YLPFGFILV (SEQ ID NO: 268) VLPFGFILV (SEQ ID NO: 269) NLPFGFILV (SEQ ID NO: 270) RLPFGFILV (SEQ ID NO: 271) SLPFGFILV (SEQ ID NO: 272) TLPFGFILV (SEQ ID NO: 273) CLPFGFILV (SEQ ID NO: 274) LLPFGFILV.

Thereby, SEQ ID NO: 268 and/or SEQ ID NO: 269 are more preferred, and SEQ ID NO: 267 is most preferred.

According to some embodiments, the immunogenic compound comprises, or consists of, an antigenic peptide of formula (I):

PepNt-CORE-PepCt  (I), wherein:

-   -   “PepNt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         N-terminal end of the polypeptide of formula (I);     -   CORE consists of a polypeptide comprising, or alternatively         consisting of, an amino acid sequence selected from the group         consisting of SEQ ID NO: 1 to 242 (which includes SEQ ID NO: 31,         64, 178 and 212), in particular an amino acid sequence as set         forth in SEQ ID NO: 31 or SEQ ID NO 192; and     -   “PepCt” consists of a polypeptide having an amino acid length         varying from 0 to 500 amino acid residues and located at the         C-terminal end of the polypeptide of formula (I).

According to one particular embodiment, the immunogenic compound comprises or consists of an antigenic peptide of formula (Ia) or (Ib):

PepNt-CORE  (Ia); or

CORE-PepCt  (Ib).

wherein “PepNt” and “PepCt” and CORE are as defined above.

According to some even more particular embodiments, the antigenic peptide or immunogenic above, as defined above, comprises from 9 to 1000 amino acids; which includes 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900 and 1000 amino acids.

According to said embodiment, the length of “PepNt” and “PepCt”, if applicable, are defined accordingly.

Thus, “PepNt” and “PepCt”, as defined above, may comprise from 0 to 500 amino acid residues; which includes 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 250, 300, 350, 400, 450, and 500 amino acid residues.

The types of carrier molecules used for generating an immunogenic compound of the invention, such as the ones comprising or consisting of a peptide of formula (I) linked to a carrier molecule, are well in the general knowledge of the one skilled in the art. The function of the carrier molecule is to provide cytokine help (or T-cell help) in order to enhance the immune response against the relevant tumoral protein (tumor protein).

Preferably, the antigenic peptide is linked to a carrier molecule, in particular to a carrier protein, preferably by covalent or non-covalent bond. The carrier molecule to which the peptide is optionally bound can be selected from a wide variety of known carriers. Examples of carrier molecules for vaccine purposes encompass proteins such as human or bovine serum albumin and keyhole limpet haemocyanin (KLH) and fatty acids. Other embodiments of carrier molecules to which an antigenic peptide of formula (I) may be covalently linked include bacterial toxins or toxoids, such as diphtheria, cholera, E. coli heat labile or tetanus toxoids, the N. meningitidis outer membrane protein (European patent application no EP0372501), synthetic peptides (European patent applications no EP0378881 and no EP0427347), heat shock proteins (PCT application no WO93/17712), Pertussis proteins (PCT application no WO98/58668), protein D from H. influenzae (PCT application no WO00/56360.) and toxin A or B from C. difficile (International patent application WO00/61761).

According to one embodiment, the carrier protein or carrier peptide is a HHD-DR3 carrier peptide MAKTIAYDEEARRGLERGLN (SEQ ID NO 266).

According to one embodiment, “PepNt” and/or “PepCt” may correspond to a carrier protein or carrier peptide, such as the HHD-DR3 carrier peptide MAKTIAYDEEARRGLERGLN (SEQ ID NO 266).

According to one embodiment, the immunogenic compound comprises or consists of the carrier peptide of sequence SEQ ID NO 266 linked covalently to the N-terminus of the antigenic peptide of sequence SEQ ID NO 31 or to the N-terminus of the antigenic peptide of sequence SEQ ID NO 192.

More preferably, the carrier protein or carrier peptide is a protein/peptide having immuno-adjuvant properties, such as providing stimulation of CD4+Th1 cells as described herein. A preferred example thereof is a non-tumor antigen that recalls immune memory or provides a non-specific help or could be a specific tumor-derived helper peptide, such as tetanus helper peptide, keyhole limpet hemocyanin peptide or PADRE peptide. Another preferred example is a specific tumor derived helper peptide, which may be presented by MHC II, in particular by HLA-DR, HLA-DP or HLA-DQ, such as fragments of shared overexpressed tumor antigens, e.g. HER2, NY-ESO-1, hTERT or IL13RA2, as described above.

Accordingly, “PepNt” and/or “PepCt” may preferably correspond to such a protein/peptide having immuno-adjuvant properties, such as providing stimulation of CD4+Th1 cells as described herein.

Moreover, the immunogenic compound comprises or consists of such a protein/peptide having immuno-adjuvant properties, such as providing stimulation of CD4+Th1 cells as described herein, linked covalently to the N-terminus of the antigenic peptide of sequence SEQ ID NO 31 or to the N-terminus of the antigenic peptide of sequence SEQ ID NO 192.

According to one embodiment, the said antigenic peptide is covalently bound to the carrier molecule through a linker moiety.

The said restricted family of linker agents encompasses, or even consists of, the linker agents named GMBS, sulfo-GMBS, SMPB and sulfo-SMPB.

In some embodiments of an immunogenic compound as defined above, the said linker agent is selected form the group consisting of GMBS (N-[γ-maleimidobutyryl-oxy]succinimide ester), Sulfo-GMBS (N-[γ-maleimidobutyryl-oxy]sulfosuccinimide ester), SMPB (succinimidyl 4-[p-maleimidophenyl]butyrate) and Sulfo-SMPB (sulfosuccinimidyl 4-[p-maleimidophenyl]butyrate).

Methods for conjugating two proteins with a linker agent in general, and more particularly with a linker agent selected from the group consisting of GMBS, Sulfo-GMBS, SMPB and Sulfo-SMPB, are well known by the one skilled in the art. Illustratively, such protocols are disclosed in the leaflets that are made publicly available by the Pierce Company (Illinois, USA). GMBS, Sulfo-GMBS, SMPB and Sulfo-SMPB consist of heterobifunctional linker agents that contain both a N-hydroxysuccinimide (NHS) ester group and a maleimide group. Conjugation using GMBS, Sulfo-GMBS, SMPB or Sulfo-SMPB is usually performed by a two-step procedure. In a first step, the amine-containing protein is reacted with a several-fold molar excess of the linker agent at pH 7-9 to form amide bonds, followed by removal of excess non-reacted linker agent, usually by desalting or dialysis. In a second step, the sulfhydryl-containing molecule (e.g. peptide of formula (I)) is added to react with the maleimide groups already attached to the first protein at pH 6.5-7.5 to form stable thioether bonds.

Using SMPB or Sulfo-SMPB as linker agents for covalently linking peptides of formula (I) to the amine-containing carrier protein, leads to a conjugate of formula (II) below:

wherein:

-   -   R1 consists of one reactive group of the amine-containing         carrier protein, and wherein the NH group attached thereto         derives from (i) the alpha amino group located at the N-terminal         end of the amine-containing carrier protein or (ii) a lateral         chain amino group from a Lysine (K) amino acid residue of the         amine-containing carrier protein.     -   R2 consists of a peptide of formula (I), and wherein the         sulphur (S) atom attached thereto derives from a sulfhydryl (SH)         group of a cysteine residue located at the N-terminal end or at         the C-terminal end of a peptide of formula (I). In some         embodiments, the sulfhydryl moiety could be part of an unnatural         amino acid, or any other molecule present at the end of the         peptide of formula (I).

Using GMBS or Sulfo-GMBS as linker agents for covalently linking peptides of formula (I) to the amine-containing carrier protein, in particular the CRM197 carrier, protein leads to a conjugate of formula (III) below:

wherein:

-   -   R1 consists of one reactive group of the amine-containing         carrier protein, and wherein the NH group attached thereto         derives from (i) the alpha amino group located at the N-terminal         end of the amine-containing carrier protein or (ii) a lateral         chain amino group from a Lysine (K) amino acid residue of the         amine-containing carrier protein.     -   R2 consists of a peptide of formula (I), and wherein the         sulphur (S) atom attached thereto derives from a sulfhydryl (SH)         group of a cysteine residue located at the N-terminal end or at         the C-terminal end of a peptide of formula (I). In some         embodiments, the sulfhydryl moiety could be part of an unnatural         amino acid, or any other molecule present at the end of the         peptide of formula (I).

In a further aspect the present invention provides a cell loaded with at least one immunogenic compound according to the present invention or with at least one antigenic peptide according to the present invention. A preferred antigenic peptide is a peptide or polypeptide having an amino acid sequence as set forth in SEQ ID NO 31 or a peptide or polypeptide having an amino acid sequence as set forth in SEQ ID NO 192. Also combinations thereof are preferred, namely, cells loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and/or with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192 (or with the respective immunogenic compound(s)).

A preferred cell is an antigen presenting cell (APC), more preferably a dendritic cell (DC).

Antigen-presenting cells (APCs) are of particular interest, as their main function is to process antigens and present it on the cell surface to the T cells of the immune system, so as to initiate and modulate T-cell responses in vivo. In the context of the present invention, it is preferred that the APCs are loaded with the antigenic peptide(s) and/or immunogenic compound(s) according to the invention, which can be done by exposing APCs in vitro with said antigenic peptide(s) and/or immunogenic compound(s) (Rizzo M M, Alaniz L, Mazzolini G. Ex vivo loading of autologous dendritic cells with tumor antigens. Methods Mol Biol. 2014; 1139:41-4; Rolinski J, Hus I. Breaking immunotolerance of tumors: a new perspective for dendritic cell therapy. J Immunotoxicol. 2014 October; 11(4):311-8).

Preferred antigen-presenting cells according to the invention are dendritic cells (DCs). It can indeed be advantageous to combine at least one antigenic peptide or immunogenic compound according to the invention with dendritic cells, as those are the most potent antigen-presenting cells and have been reported to be frequently functionally defective in cancer patients. Dendritic cells can be easily obtained by the skilled person in the art from either healthy compatible donors (i.e. the dendritic cells are HLA-related) or from the patient himself provided that they are functional (i.e. the dendritic cells are autologous), for example by direct isolation from the peripheral blood, or by derivation from peripheral blood cells such as CD14+ monocytes or CD34+ hematopoietic precursors (Figdor C G, de Vries I J, Lesterhuis W J, Melief C J. Dendritic cell immunotherapy: mapping the way. Nat Med. 2004 May; 10(5):475-80). Dendritic cells can indeed be distinguished from other cells of peripheral blood by their surface markers, such as S100, p55, CD83, and/or OX62, and may thus be isolated and purified based on said markers using cell cultures techniques well-known in the art.

In a further aspect, the present invention provides a nucleic acid encoding an antigenic peptide according to the present invention or an immunogenic compound according to the present invention, wherein the immunogenic compound is a peptide or a protein. Preferably, the antigenic peptide is a peptide or polypeptide of sequence SEQ ID NO 31 or SEQ ID NO 192; and/or an antigenic peptide of formula (I) as described above.

Nucleic acids preferably comprise single stranded, double stranded or partially double stranded nucleic acids, preferably selected from genomic DNA, cDNA, RNA, siRNA, antisense DNA, antisense RNA, ribozyme, complimentary RNA/DNA sequences with or without expression elements, a mini-gene, gene fragments, regulatory elements, promoters, and combinations thereof. Further preferred examples of nucleic acid (molecules) and/or polynucleotides include, e.g., a recombinant polynucleotide, a vector, an oligonucleotide, an RNA molecule such as an rRNA, an mRNA or a tRNA, or a DNA molecule as described above. It is thus preferred that the nucleic acid (molecule) is a DNA molecule or an RNA molecule; preferably selected from genomic DNA; cDNA; rRNA; mRNA; antisense DNA; antisense RNA; complimentary RNA and/or DNA sequences; RNA and/or DNA sequences with or without expression elements, regulatory elements, and/or promoters; a vector; and combinations thereof.

Accordingly, the nucleic acid molecule may be a vector. The term “vector”, as used in the context of the present invention, refers to a nucleic acid molecule, preferably to an artificial nucleic acid molecule, i.e. a nucleic acid molecule which does not occur in nature. A vector in the context of the present invention is suitable for incorporating or harboring a desired nucleic acid sequence. Such vectors may be storage vectors, expression vectors, cloning vectors, transfer vectors etc. A storage vector is a vector which allows the convenient storage of a nucleic acid molecule. Thus, the vector may comprise a sequence corresponding, e.g., to a desired antigenic peptide according to the present invention. An expression vector may be used for production of expression products such as RNA, e.g. mRNA, or peptides, polypeptides or proteins. For example, an expression vector may comprise sequences needed for transcription of a sequence stretch of the vector, such as a promoter sequence. A cloning vector is typically a vector that contains a cloning site, which may be used to incorporate nucleic acid sequences into the vector. A cloning vector may be, e.g., a plasmid vector or a bacteriophage vector. A transfer vector may be a vector which is suitable for transferring nucleic acid molecules into cells or organisms, for example, viral vectors. A vector in the context of the present invention may be, e.g., an RNA vector or a DNA vector. Preferably, a vector is a DNA molecule. For example, a vector in the sense of the present application comprises a cloning site, a selection marker, such as an antibiotic resistance factor, and a sequence suitable for multiplication of the vector, such as an origin of replication. Preferably, a vector in the context of the present application is a plasmid vector. Preferably, a vector in the context of the present application is an expression vector. A preferred vector is a vector for expression in bacterial cells. More preferably, the vector is useful for expression in so-called “live bacterial vaccine vectors”, wherein live bacterial cells (such as bacteria or bacterial spores, e.g., endospores, exospores or microbial cysts) can serve as vaccines. Preferred examples thereof are described in da Silva et al., Live bacterial vaccine vectors: an overview; Braz J Microbiol. 2015 Mar. 4; 45(4):1117-29.

Nucleic acids encoding antigenic peptides according to the invention may be in the form of naked nucleic acids, or nucleic acids cloned into plasmids or viral vectors (Tregoning and Kinnear, Using Plasmids as DNA Vaccines for Infectious Diseases. Microbiol Spectr. 2014 December; 2(6). doi: 10.1128/microbiolspec.PLAS-0028-2014), the latter being particularly preferred. Examples of suitable viral vectors according to the invention include, without limitation, retrovirus, adenovirus, adeno-associated virus (AAV), herpes virus and poxvirus vectors. It is within the skill of the person in the art to clone a nucleic acid into a plasmid or viral vector, using standard recombinant techniques in the art.

In a further aspect, the present invention also provides a host cell comprising the nucleic acid according to the present invention, wherein the nucleic acid is preferably a vector. Preferably, the host cell is a bacterial cell. Such a host cell may be preferably used for production of the antigenic peptide according to the present invention or the immunogenic compound according to the present invention. Moreover, such a host cell may also be an active component in a vaccine.

Preferably, the host cell is a bacterial cell, preferably a gut bacterial cell. Such a bacterial host cell may serve as “live bacterial vaccine vector”, wherein live bacterial cells (such as bacteria or bacterial spores, e.g., endospores, exospores or microbial cysts) can serve as vaccines. Preferred examples thereof are described in da Silva et al., Live bacterial vaccine vectors: an overview; Braz J Microbiol. 2015 Mar. 4; 45(4):1117-29.

Bacterial cells (such as bacteria or bacterial spores, e.g., endospores, exospores or microbial cysts), in particular (entire) gut bacterial species, can be advantageous, as they have the potential to trigger a greater immune response than the (poly)peptides or nucleic acids they contain.

Alternatively, bacterial cells, in particular gut bacteria, according to the invention may be in the form of probiotics, i.e. of live gut bacterium, which can thus be used as food additive due to the health benefits it can provide. Those can be for example lyophilized in granules, pills or capsules, or directly mixed with dairy products for consumption.

In a further aspect, the present invention provides a nanoparticle loaded with

-   -   at least one of the immunogenic compounds according to the         present invention, or     -   at least one of the antigenic peptides according to the present         invention; and, optionally, with an adjuvant.

Nanoparticles, in particular for use as vaccines, are known in the art and described, for example, in Shao et al., Nanoparticle-based immunotherapy for cancer, ACS Nano 2015, 9(1):16-30; Zhao et al., Nanoparticle vaccines, Vaccine 2014, 32(3):327-37; and Gregory et al., Vaccine delivery using nanoparticles, Front Cell Infect Microbiol. 2013, 3:13, doi: 10.3389/fcimb.2013.00013. eCollection 2013, Review. In particular, the nanoparticle is used for delivery of the antigenic peptide (or the polypeptide/protein/nucleic acid comprising the antigenic peptide) and may optionally also act as an adjuvant. The antigenic peptide (the polypeptide/protein/nucleic acid comprising the antigenic peptide) is typically either encapsulated within the nanoparticle or linked/bound to (decorated onto) the surface of the nanoparticle (“coating”). Compared to conventional approaches, nanoparticles can protect the payload (antigen/adjuvant) from the surrounding biological milieu, increase the half-life, minimize the systemic toxicity, promote the delivery to APCs, or even directly trigger the activation of TAA-specific T-cells. Preferably, the nanoparticle has a size (diameter) of no more than 300 nm, more preferably of no more than 200 nm and most preferably of no more than 100 nm. Such nanoparticles are adequately sheltered from phagocyte uptake, with high structural integrity in the circulation and long circulation times, capable of accumulating at sites of tumor growth, and able to penetrate deep into the tumor mass.

Examples of nanoparticles include polymeric nanoparticles such as poly(ethylene glycol) (PEG) and poly (D,L-lactic-coglycolic acid) (PLGA); inorganic nanoparticles such as gold nanoparticles, iron oxide beads, iron-oxide zinc-oxide nanoparticles, carbon nanotubes and mesoporous silica nanoparticles; liposomes, such as cationic liposomes; immunostimulating complexes (ISCOM); virus-like particles (VLP); and self-assembled proteins.

Polymeric nanoparticles are nanoparticles based on/comprising polymers, such as poly(d,l-lactide-co-glycolide) (PLG), poly(d,l-lactic-coglycolic acid)(PLGA), poly(g-glutamic acid) (g-PGA), poly(ethylene glycol) (PEG), and polystyrene. Polymeric nanoparticles may entrap an antigen (e.g., the antigenic peptide or a (poly)peptide comprising the same) or bind to/conjugate to an antigen (e.g., the antigenic peptide or a (poly)peptide comprising the same). Polymeric nanoparticles may be used for delivery, e.g. to certain cells, or sustain antigen release by virtue of their slow biodegradation rate. For example, g-PGA nanoparticles may be used to encapsulate hydrophobic antigens. Polystyrene nanoparticles can conjugate to a variety of antigens as they can be surface-modified with various functional groups. Polymers, such as Poly(L-lactic acid) (PLA), PLGA, PEG, and natural polymers such as polysaccharides may also be used to synthesize hydrogel nanoparticles, which are a type of nano-sized hydrophilic three-dimensional polymer network. Nanogels have favorable properties including flexible mesh size, large surface area for multivalent conjugation, high water content, and high loading capacity for antigens. Accordingly, a preferred nanoparticle is a nanogel, such as a chitosan nanogel. Preferred polymeric nanoparticles are nanoparticles based on/comprising poly(ethylene glycol) (PEG) and poly (D,L-lactic-coglycolic acid) (PLGA).

Inorganic nanoparticles are nanoparticles based on/comprising inorganic substances, and examples of such nanoparticles include gold nanoparticles, iron oxide beads, iron-oxide zinc-oxide nanoparticles, carbon nanoparticles (e.g., carbon nanotubes) and mesoporous silica nanoparticles. Inorganic nanoparticles provide a rigid structure and controllable synthesis. For example, gold nanoparticles can be easily produced in different shapes, such as spheres, rods, cubes. Inorganic nanoparticles may be surface-modified, e.g. with carbohydrates. Carbon nanoparticles provide good biocompatibility and may be produced, for example, as nanotubes or (mesoporous) spheres. For example, multiple copies of the antigenic peptide according to the present invention (or a (poly)peptide comprising the same) may be conjugated onto carbon nanoparticles, e.g. carbon nanotubes. Mesoporous carbon nanoparticles are preferred for oral administration. Silica-based nanoparticles (SiNPs) are also preferred. SiNPs are biocompatible and show excellent properties in selective tumor targeting and vaccine delivery. The abundant silanol groups on the surface of SiNPs may be used for further modification to introduce additional functionality, such as cell recognition, absorption of specific biomolecules, improvement of interaction with cells, and enhancement of cellular uptake. Mesoporous silica nanoparticles are particularly preferred.

Liposomes are typically formed by phospholipids, such as 1,2-dioleoyl-3-trimethylammonium propane (DOTAP). In general, cationic liposomes are preferred. Liposomes are self-assembling with a phospholipid bilayer shell and an aqueous core. Liposomes can be generated as unilameller vesicles (having a single phospholipid bilayer) or as multilameller vesicles (having several concentric phospholipid shells separated by layers of water). Accordingly, antigens can be encapsulated in the core or between different layers/shells. Preferred liposome systems are those approved for human use, such as Inflexal® V and Epaxal®.

Immunostimulating complexes (ISCOM) are cage like particles of about 40 nm (diameter), which are colloidal saponin containing micelles, for example made of the saponin adjuvant Quil A, cholesterol, phospholipids, and the (poly)peptide antigen (such as the antigenic peptide or a polypeptide comprising the same). These spherical particles can trap the antigen by apolar interactions. Two types of ISCOMs have been described, both of which consist of cholesterol, phospholipid (typically either phosphatidylethanolamine or phos-phatidylcholine) and saponin (such as QuilA).

Virus-like particles (VLP) are self-assembling nanoparticles formed by self-assembly of biocompatible capsid proteins. Due to the naturally-optimized nanoparticle size and repetitive structural order VLPs can induce potent immune responses. VLPs can be derived from a variety of viruses with sizes ranging from 20 nm to 800 nm, typically in the range of 20-150 nm. VLPs can be engineered to express additional peptides or proteins either by fusing these peptides/proteins to the particle or by expressing multiple antigens. Moreover, antigens can be chemically coupled onto the viral surface to produce bioconjugate VLPs.

Examples of self-assembled proteins include ferritin and major vault protein (MVP). Ferritin is a protein that can self-assemble into nearly-spherical 10 nm structure. Ninety-six units of MVP can self-assemble into a barrel-shaped vault nanoparticle, with a size of approximately 40 nm wide and 70 nm long. Antigens that are genetically fused with a minimal interaction domain can be packaged inside vault nanoparticles by self-assembling process when mixed with MVPs. Accordingly, the antigen (such as the antigenic peptide according to the present invention of a polypeptide comprising the same) may be fused to a self-assembling protein or to a fragment/domain thereof, such as the minimal interaction domain of MVP. Accordingly, the present invention also provides a fusion protein comprising a self-assembling protein (or a fragment/domain thereof) and the antigenic peptide according to the present invention.

In general, preferred examples of nanoparticles (NPs) include iron oxide beads, polystyrene microspheres, poly(γ-glutamic acid) (γ-PGA) NPs, iron oxide-zinc oxide NPs, cationized gelatin NPs, pluronic-stabilized poly(propylene sulfide) (PPS) NPs, PLGA NPs, (cationic) liposomes, (pH-responsive) polymeric micelles, PLGA, cancer cell membrane coated PLGA, lipid-calcium-phosphate (LCP) NPs, liposome-protamine-hyaluronic acid (LPH) NPs, polystyrene latex beads, magnetic beads, iron-dextran particles and quantum dot nanocrystals.

Preferably, the nanoparticle further comprises an adjuvant, for example a toll-like receptor (TLR) agonist. Thereby, the antigenic peptide (the polypeptide/protein/nucleic acid comprising the antigenic peptide) can be delivered together with an adjuvant, for example to antigen-presenting cells (APCs), such as dendritic cells (DCs). The adjuvant may be encapsulated by the nanoparticle or bound to/conjugated to the surface of the nanoparticle, preferably similarly to the antigenic peptide.

Particularly preferred adjuvants are polyinosinic:polycytidylic acid (also referred to as “poly I:C”) and/or its derivative poly-ICLC. Poly I:C is a mismatched double-stranded RNA with one strand being a polymer of inosinic acid, the other a polymer of cytidylic acid. Poly I:C is an immunostimulant known to interact with toll-like receptor 3 (TLR3). Poly I:C is structurally similar to double-stranded RNA, which is the “natural” stimulant of TLR3. Accordingly, poly I:C may be considered a synthetic analog of double-stranded RNA. Poly-ICLC is a synthetic complex of carboxymethylcellulose, polyinosinic-polycytidylic acid, and poly-L-lysine double-stranded RNA. Similar to poly I:C, also poly-ICLC is a ligand for TLR3. Poly I:C and poly-ICLC typically stimulate the release of cytotoxic cytokines. A preferred example of poly-ICLC is Hiltonol®.

Immunogenic Compositions and Kits

Immunogenic compositions according to the invention comprises at least one of the following:

-   -   an antigenic peptide according to the present invention,     -   an immunogenic compound according to the present invention,     -   a nanoparticle according to the present invention,     -   a cell according to the present invention,     -   a nucleic acid according to the present invention, or     -   a host cell according to the present invention.

Preferably, the immunogenic composition further comprises one or more pharmaceutically acceptable excipients or carriers.

The immunogenic composition of the invention may be in any form suitable for the purposes of the invention. For example, said composition may be in a form suitable for parenteral, enteral or topical administration, such as a liquid suspension, a solid dosage form (granules, pills, capsules or tablets), or a paste or gel. It is within the skill of the person in the art to select the appropriate form of the composition for the intended purpose.

Indeed, in the context of the present invention, it can be particularly advantageous to use (poly)peptides, or nucleic acids encoding thereof, because of their ease of manufacturing at a low cost and relative safety with no potential for reassortment, infection or recombination.

Antigenic peptides of the invention may be administered in the form of immunogenic compounds according to the present invention, cells loaded therewith according to the present invention, nanoparticles according to the present invention, nucleic acids according to the present invention, host cells according to the present invention and/or immunogenic compositions according to the present invention.

According to one embodiment, they may be administered in the form of a micro-organism such as a gut bacterial species.

Entire gut bacterial species can also be advantageous as they have the potential to trigger a greater immune response than the (poly)peptides or nucleic acids they contain.

Alternatively, gut bacteria according to the invention may be in the form of probiotics, i.e. of live gut bacterium, which can thus be used as food additive thanks to the health benefits it can provide. Those can be for example lyophilized in granules, pills or capsules, or directly mixed with dairy products for consumption.

One skilled in the art would readily understand that an antigenic peptide of the invention can be selected based upon the nature of the cancer to be prevented or treated, and/or on the human gene/human tumor antigen involved in said cancer. For example, should one wish to prevent or treat melanoma which involves a Glycoprotein 100 (gp100), a TRP1, a TRP2, a tyrosinase and/or a Melan A/MART1 antigen, one can select any of the corresponding antigenic peptide(s) as described in Table 1. In addition, any one of the antigenic peptides according to SEQ ID NO: 267-274 may be selected. It shall be understood that co-administration of several antigenic peptides of the invention is particularly preferred, so as to enhance the immune response.

Thus, according to a preferred embodiment, the composition of the invention comprises at least 2 antigenic peptides (which may be in the form of immunogenic compounds) as defined above, which includes at least 3 antigenic peptides, or at least 4 antigenic peptides, or at least 5 antigenic peptides, or at least 6 antigenic peptides, or at least 7 antigenic peptides, or at least 8 antigenic peptides, or at least 9 antigenic peptides, or at least 10 antigenic peptides, or at least 11 antigenic peptides, or at least 12 antigenic peptides, or at least 13 antigenic peptides, or at least 14 antigenic peptides, or at least 15 antigenic peptides, or at least 20 antigenic peptides, or at least 25 antigenic peptides, or at least 50 antigenic peptides, or at least 100 antigenic peptides, or at least 500 antigenic peptides, or at least 1000 antigenic peptides, or at least 1500 antigenic peptides. It is within the skill of the person in the art to select the combination of antigenic peptides and/or immunogenic compounds that is suitable for the intended purpose. For example, should one wish to prevent or treat melanoma which involves a IL13R2A antigen, one can select any combination of the corresponding antigenic peptides as described in Table 1.

In a particularly preferred embodiment the antigenic peptide comprising or consisting of SEQ ID NO: 31 is combined with the antigenic peptide comprising or consisting of SEQ ID NO: 192. In other words, the composition according to the present invention preferably comprises

(i) an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and an immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192;

(ii) an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192;

(iii) a nanoparticle loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and a nanoparticle loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192; or

(iv) a nucleic acid comprising a polynucleotide encoding an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31 and a nucleic acid comprising a polynucleotide encoding an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192.

The composition according to the invention can further comprise other active agents, for example such, which can enhance the effects of the antigenic peptide or immunogenic compound. Alternatively, the composition may not comprise any other active agents (i.e., other than the antigenic peptide according to the present invention, the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, or the host cell according to the present invention).

According to a preferred embodiment, said composition further comprises at least one immunostimulatory agent, in particular so as to potentiate the immune response mediated by the antigenic peptide. Preferred immunostimulatory agents according to the invention include, without limitation, immune adjuvants, antigen-presenting cells, and combinations thereof. Preferably, the immunostimulatory agent is an immune adjuvant or an antigen-presenting cell (APC).

Some immune adjuvants are indeed capable of favoring and prolonging the duration of interaction between an antigen and the immune system, while others are capable of recruiting and activating cells of the natural immunity so as to induce an adaptive response. The adjuvants belonging to the former category include, without limitation, mineral compounds such as alum, aluminum hydroxide, aluminum phosphate, calcium phosphate hydroxide; and oil-based emulsions such as paraffin oil, starch oil, Freund's complete/incomplete adjuvant (FCA/FIA), saponins (e.g. from the plants Quillaja, Soybean, Polygala senega). The adjuvants of belonging to the latter category include, without limitation, immunostimulatory complexes (ISCOMs) such as cytokines (e.g. GM-CSF; Interleukins such as IL-1, IL-2, IL6, IL8, or IL12; Tumor necrosis factors (TNFs) such as TNFα or TNFβ; Interferons IFNS such as IFNα, IFNβ, IFNγ or IFNδ, etc); ligands of toll-like receptors (TLRs) such as imiquimod, resiquimod or MPL; exosomes such as exosomes derived from dendritic cells (DCs) or from tumor cells; bacterial products such as heat-shock proteins (HSPs such as gp96, hsp90, hsp70, calreticulin, hsp110, hsp170), pathogen-associated molecular patterns (PAMPs), trehalose dimicolate (TDM), muramyldipeptide (MDP), polysaccharide (PLS) such as polysaccharide-K.

According to one embodiment, the immune adjuvant may be the HHD-DR3 peptide MAKTIAYDEEARRGLERGLN (SEQ ID NO 266).

More preferably, the immune adjuvants is a protein/peptide having immuno-adjuvant properties, such as providing stimulation of CD4+Th1 cells, as described herein. A preferred example thereof is a non-tumor antigen that recalls immune memory or provides a non-specific help or could be a specific tumor-derived helper peptide, such as tetanus helper peptide, keyhole limpet hemocyanin peptide or PADRE peptide, as described herein. Another preferred example is a specific tumor derived helper peptide, which may be presented by MHC II, in particular by HLA-DR, HLA-DP or HLA-DQ, such as fragments of shared overexpressed tumor antigens, e.g. HER2, NY-ESO-1, hTERT or IL13RA2, as described above.

Particularly preferred adjuvants are polyinosinic:polycytidylic acid (also referred to as “poly I:C”) and/or its derivative poly-ICLC. Poly I:C is a mismatched double-stranded RNA with one strand being a polymer of inosinic acid, the other a polymer of cytidylic acid. Poly I:C is an immunostimulant known to interact with toll-like receptor 3 (TLR3). Poly I:C is structurally similar to double-stranded RNA, which is the “natural” stimulant of TLR3. Accordingly, poly I:C may be considered a synthetic analog of double-stranded RNA. Poly-ICLC is a synthetic complex of carboxymethylcellulose, polyinosinic-polycytidylic acid, and poly-L-lysine double-stranded RNA. Similar to poly I:C, also poly-ICLC is a ligand for TLR3. Poly I:C and poly-ICLC typically stimulate the release of cytotoxic cytokines. A preferred example of poly-ICLC is Hiltonol®.

Antigen-presenting cells (APCs) are also of particular interest, as their main function is to process antigens and present it on the cell surface to the T cells of the immune system, so as to initiate and modulate T-cell responses in vivo. In the present composition, it is preferred that the APCs are loaded with the antigenic peptide(s) and/or immunogenic compound(s) according to the invention, which can be done by exposing APCs in vitro with said antigenic peptide(s) and/or immunogenic compound(s) (Rizzo et al., Ex vivo loading of autologous dendritic cells with tumor antigens. Methods Mol Biol. 2014; 1139:41-4; Rolinski and Hus, Breaking immunotolerance of tumors: a new perspective for dendritic cell therapy. J Immunotoxicol. 2014 October; 11(4):311-8).

Preferred antigen-presenting cells according to the invention are dendritic cells (DCs). It can indeed be advantageous to combine at least one antigenic peptide or immunogenic compound according to the invention with dendritic cells, as those are the most potent antigen-presenting cells and have been reported to be frequently functionally defective in cancer patients. Dendritic cells can be easily obtained by the skilled person in the art from either healthy compatible donors (i.e. the dendritic cells are HLA-related) or from the patient himself provided that they are functional (i.e. the dendritic cells are autologous), for example by direct isolation from the peripheral blood, or by derivation from peripheral blood cells such as CD14+ monocytes or CD34+ hematopoietic precursors (Emens et al., 2008). Dendritic cells can indeed be distinguished from other cells of peripheral blood by their surface markers, such as S100, p55, CD83, and/or OX62, and may thus be isolated and purified based on said markers using cell cultures techniques well-known in the art.

According to a preferred embodiment, the pharmaceutical composition may further comprise at least one anti-cancer therapeutic agent. Said therapeutic agent is thus preferably capable of preventing and/or treating the same type of cancer than the one for which the antigenic peptide according to the invention is used. Particularly preferred anti-cancer therapeutic agents according to the invention include, without limitation, antibodies, tumor cell lysates, chemotherapeutic agents, radiotherapeutic agents and combinations thereof. Most preferably, the anti-cancer therapeutic agent is selected from antibodies, tumor cell lysates, chemotherapeutic agents, radiotherapeutic agents, immune checkpoint modulators and combinations thereof.

Antibodies are particularly advantageous in cancer therapy as they can either bind to specific antigens on cancer cell surfaces, thereby directing the therapy to the tumor (i.e. these are referred as tumor-targeting antibodies), or block immune checkpoints that are dysregulated in cancer (i.e. these are referred herein as immunomodulatory antibodies). The purpose of the later type of antibodies is to inhibit cancer immune resistance, which can notably be observed against T cells that are specific for tumour antigens. Indeed, as well-known in the art, under normal physiological conditions, immune checkpoints are crucial for the maintenance of self-tolerance (i.e. prevention of autoimmunity) and protect tissues from damage when the immune system is responding to pathogenic infection. However, in cancer, immune-checkpoints expression can be dysregulated as an important mechanism of immune resistance. Said resistance has notably been observed in melanoma, ovarian, lung, glioblastoma, breast, and pancreatic cancers with regard to the PD-L1 checkpoint (Konishi et al., B7-H1 expression on non-small cell lung cancer cells and its relationship with tumor-infiltrating lymphocytes and their PD-1 expression. Clin Cancer Res. 2004 Aug. 1; 10(15):5094-100; Ghebeh et al., The B7-H1 (PD-L1) T lymphocyte-inhibitory molecule is expressed in breast cancer patients with infiltrating ductal carcinoma: correlation with important high-risk prognostic factors. Neoplasia. 2006 March; 8(3):190-8; Hino et al., Tumor cell expression of programmed cell death-1 ligand 1 is a prognostic factor for malignant melanoma. Cancer. 2010 Apr. 1; 116(7):1757-66). Other examples of immune checkpoints include, without limitation, PD-L2, PD1, CD80, CD86, CTLA4, B7H3, B7H4, PVR, TIGIT, GAL9, LAG-3, GITR, CD137, TIM3, VISTA, VISTA-R (Pico de Coaña et al., Checkpoint blockade for cancer therapy: revitalizing a suppressed immune system. Trends Mol Med. 2015 August; 21(8):482-91; Pardoll DM1. The blockade of immune checkpoints in cancer immunotherapy. Nat Rev Cancer. 2012 Mar. 22; 12(4):252-64).

Antibodies are usually employed for the above purposes either in the form of naked monoclonal antibodies (i.e. non-conjugated), or conjugated to another molecule which can be toxic to cells or radioactive.

Examples of well-known monoclonal tumor-targeting antibodies used in cancer immunotherapy include, without limitation, alemtuzumab (chronic lymphocytic leukemia), bevacizumab (colorectal cancer, glioblastoma multiforme, cervical cancer, lung cancer, renal cancer), brentuximab/vedotin (lymphomas), blinatumumab (acute lymphoblastic leukemia), catumaxomab (malignant ascites in EPCAM+ cancers), cetuximab (head and neck cancer, colorectal cancer), denosumab (breast, prostate and bone cancers), Gemtuzumab/ozogamicin (acute myeloid keulemia), ibritumomab/tiuxetan (non-Hodgkin lymphoma), panitumumab (colorectal cancer), pertuzumab (breast cancer), obinutuzumab (chronic lymphocytic leukemia), ofatumumab (chronic lymphocytic leukemia), opilimumab (melanoma), ramucirumab (gastric and gastro-oeasophageal cancers), rituximab (chronic lymphocytic leukemia and non-Hodgkin lymphoma), siltuximab (multicentric's Catsleman's disease), tositumomab (non-Hodgkin lymphoma), and trastuzumab (breast, gastric and gastro-oeasophageal cancers); while examples of immunomodulatory antibodies include, without limitation, ipilimumab (melanoma) which blocks the CTLA4-dependent immune checkpoint, nivolumab (melanoma, lung cancer) and prembrolizubmab (melanoma) which both block the PDCD1-dependent immune checkpoint, as well as MPDL3280A, MEDI4736, MEDI0680, and MSB0010718C which all block the PD-L1-dependent immune checkpoint (Sharma and Allison, The future of immune checkpoint therapy. Science. 2015 Apr. 3; 348(6230):56-61).

Other antibodies for cancer immunotherapy have been described in Buqué et al., Trial Watch: Immunomodulatory monoclonal antibodies for oncological indications. Oncoimmunology. 2015 Mar. 2; 4(4):e1008814. eCollection 2015 April; Redman et al., Mechanisms of action of therapeutic antibodies for cancer. Mol Immunol. 2015 October; 67(2 Pt A):28-45; Simpson and Caballero, Monoclonal antibodies for the therapy of cancer MC Proc. 2014; 8(Suppl 4): 06 as well as on the antibody society website (list of therapeutic monoclonal antibodies approved or in review in the European Union or United States available on the weblink http://www.antibodysociety.org/news/approved_mabs.php).

Tumor cell lysates may also be combined with the antigenic peptide(s) according to the invention. Tumor cells are indeed capable of priming the immune response, by presenting endogenous peptides-MHC complexes, as well as via dendritic cells (DCs) of the host which can process and present the antigen delivered by said lysates. The range of antigens against which an immune response can be induced is thereby increased. Tumor cell lysates can be easily obtained by treating tumor cells with a heat shock and/or a chemical treatment, and can be autologous (i.e. isolated from the patient), or allogeneic (i.e. isolated from another subject).

Standard chemotherapeutic drugs and radiotherapeutic agents need not be further described herein as they have been extensively described in the literature, notably by Baskar et al. (Baskar et al., Cancer and radiation therapy: current advances and future directions. Int J Med Sci. 2012; 9(3):193-9), Paci et al., (Paci et al., Review of therapeutic drug monitoring of anticancer drugs part 1-cytotoxics. Eur J Cancer. 2014 August; 50(12):2010-9) and Widmer et al. (Widmer et al., Review of therapeutic drug monitoring of anticancer drugs part two-targeted therapies. Eur J Cancer. 2014 August; 50(12):2020-36). A list of such drugs and agents is also available on the cancer.gov website (http://www.cancer.gov/about-cancer/treatment/drugs).

Preferably, the immune checkpoint modulator for combination with the antigenic peptide as defined herein is an activator or an inhibitor of one or more immune checkpoint point molecule(s) selected from CD27, CD28, CD40, CD122, CD137, OX40, GITR, ICOS, A2AR, B7-H3, B7-H4, BTLA, CD40, CTLA-4, IDO, KIR, LAG3, PD-1, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, GITR, TNFR and/or FasR/DcR3; or an activator or an inhibitor of one or more ligands thereof.

More preferably, the immune checkpoint modulator is an activator of a (co-)stimulatory checkpoint molecule or an inhibitor of an inhibitory checkpoint molecule or a combination thereof. Accordingly, the immune checkpoint modulator is more preferably (i) an activator of CD27, CD28, CD40, CD122, CD137, OX40, GITR and/or ICOS or (ii) an inhibitor of A2AR, B7-H3, B7-H4, BTLA, CD40, CTLA-4, IDO, KIR, LAG3, PD-1, PDL-1, PD-L2, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, TNFR and/or FasR/DcR3.

Even more preferably, the immune checkpoint modulator is an inhibitor of an inhibitory checkpoint molecule (but preferably no inhibitor of a stimulatory checkpoint molecule). Accordingly, the immune checkpoint modulator is even more preferably an inhibitor of A2AR, B7-H3, B7-H4, BTLA, CTLA-4, IDO, KIR, LAG3, PD-1, PDL-1, PD-L2, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, TNFR and/or DcR3 or of a ligand thereof.

It is also preferred that the immune checkpoint modulator is an activator of a stimulatory or costimulatory checkpoint molecule (but preferably no activator of an inhibitory checkpoint molecule). Accordingly, the immune checkpoint modulator is more preferably an activator of CD27, CD28, CD40, CD122, CD137, OX40, GITR and/or ICOS or of a ligand thereof.

It is even more preferred that the immune checkpoint modulator is a modulator of the CD40 pathway, of the IDO pathway, of the LAG3 pathway, of the CTLA-4 pathway and/or of the PD-1 pathway. In particular, the immune checkpoint modulator is preferably a modulator of CD40, LAG3, CTLA-4, PD-L1, PD-L2, PD-1 and/or IDO, more preferably the immune checkpoint modulator is an inhibitor of CTLA-4, PD-L1, PD-L2, PD-1, LAG3, and/or IDO or an activator of CD40, even more preferably the immune checkpoint modulator is an inhibitor of CTLA-4, PD-L1, PD-1, LAG3 and/or IDO, even more preferably the immune checkpoint modulator is an inhibitor of LAG3, CTLA-4 and/or PD-1, and most preferably the immune checkpoint modulator is an inhibitor of CTLA-4 and/or PD-1.

Accordingly, the checkpoint modulator for combination with the antigenic peptide may be selected from known modulators of the CTLA-4 pathway or the PD-1 pathway. Preferably, the checkpoint modulator for combination with the antigenic peptide as defined herein may be selected from known modulators of the the CTLA-4 pathway or the PD-1 pathway. Particularly preferably, the immune checkpoint modulator is a PD-1 inhibitor. Preferred inhibitors of the CTLA-4 pathway and of the PD-1 pathway include the monoclonal antibodies Yervoy® (Ipilimumab; Bristol Myers Squibb) and Tremelimumab (Pfizer/MedImmune) as well as Opdivo® (Nivolumab; Bristol Myers Squibb), Keytruda® (Pembrolizumab; Merck), Durvalumab (MedImmune/AstraZeneca), MED14736 (AstraZeneca; cf. WO 2011/066389 A1), MPDL3280A (Roche/Genentech; cf. U.S. Pat. No. 8,217,149 B2), Pidilizumab (CT-011; CureTech), MEDI0680 (AMP-514; AstraZeneca), MSB-0010718C (Merck), MIH1 (Affymetrix) and Lambrolizumab (e.g. disclosed as hPD109A and its humanized derivatives h409All, h409A16 and h409A17 in WO2008/156712; Hamid et al., 2013; N. Engl. J. Med. 369: 134-144). More preferred checkpoint inhibitors include the CTLA-4 inhibitors Yervoy® (Ipilimumab; Bristol Myers Squibb) and Tremelimumab (Pfizer/MedImmune) as well as the PD-1 inhibitors Opdivo® (Nivolumab; Bristol Myers Squibb), Keytruda® (Pembrolizumab; Merck), Pidilizumab (CT-011; CureTech), MEDI0680 (AMP-514; AstraZeneca), AMP-224 and Lambrolizumab (e.g. disclosed as hPD109A and its humanized derivatives h409All, h409A16 and h409A17 in WO2008/156712; Hamid O. et al., 2013; N. Engl. J. Med. 369: 134-144.

It is also preferred that the immune checkpoint modulator for combination with the antigenic peptide as defined herein is selected from the group consisting of Pembrolizumab, Ipilimumab, Nivolumab, MPDL3280A, MEDI4736, Tremelimumab, Avelumab, PDR001, LAG525, INCB24360, Varlilumab, Urelumab, AMP-224 and CM-24.

It is within the skill of ordinary person in the art to select the appropriate immune anti-cancer therapeutic agent for the purposes of the invention. For example, should one wish to prevent or treat melanoma, a lysate from melanoma cells and/or the antibody opilimumab can preferably be used, along with the corresponding antigenic peptide as described in Table 1 or in SEQ ID NOs 267-274.

The anti-cancer therapeutic agent can also be administered in association with the composition of the invention, either simultaneously, separately, or sequentially. Should the composition and the therapeutic agent be administered in a separate or sequential manner, those may be administered in distinct pharmaceutical forms.

Thus, in another aspect, the invention relates to a composition of the invention and at least one anti-cancer therapeutic agent as described above, as a combined preparation for a simultaneous, separate, or sequential administration. In other terms, the invention proposes a combined use of the composition the invention and least one anti-cancer therapeutic agent as described above, for a simultaneous, separate, or sequential administration.

In a further aspect, the present invention also relates to a kit-of-parts, preferably for use in the prevention and/or treatment of cancer, the kit comprising at least one of:

-   -   an immunogenic compound according to the present invention,     -   an antigenic peptide according to the present invention,     -   a nanoparticle according to the present invention,     -   a cell according to the present invention,     -   a nucleic acid according to the present invention,     -   a host cell according to the present invention, or     -   an immunogenic composition according to the present invention.

In particular, the kit-of-parts of the invention may comprise more than one of the above described components. For example, the kit-of-parts according to the present invention may comprise at least two different immunogenic compounds, at least two different antigenic peptides, at least two different nanoparticles, at least two different cells, at least two different nucleic acids, at least two different host cells, and/or at least two different immunogenic compositions. Preferably, such different components comprised by the kit-of-parts as described above differ in the antigenic peptides according to the present invention, for example one component relating to a first antigenic peptide, such as an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and one component relating to a second antigenic peptide (distinct from the first antigenic peptide), such as an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192.

For example, the kit may comprise

(i) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192.

For example, the kit may comprise

(i) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 192.

For example, the kit may comprise

(i) a nanoparticle according to the present invention loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) a nanoparticle according to the present invention loaded with an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192.

For example, the kit may comprise

(i) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 31 and

(ii) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 192.

The various components of the kit-of-parts may be packaged in one or more containers. The above components may be provided in a lyophilized or dry form or dissolved in a suitable buffer. The kit may also comprise additional reagents including, for instance, preservatives, growth media, and/or buffers for storage and/or reconstitution of the above-referenced components, washing solutions, and the like. In addition, the kit-of-parts according to the present invention may optionally contain instructions of use.

Moreover, the present invention also provides a vaccination kit for treating, preventing and/or stabilizing a cancer, comprising the immunogenic composition as described herein or a vaccine as described herein and instructions for use of said immunogenic composition or of said vaccine in the prevention and/or treatment of a cancer.

Preferably, such a kit further comprises a package insert or instruction leaflet with directions to prevent or to treat a cancer by using the immunogenic compound according to the present invention, the antigenic peptide according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention.

It is also preferred that, in addition to any of components as described above, the kit comprises an anti-cancer therapeutic agent as described herein.

Medical Treatment and Uses

As stated above, the composition of the invention can be particularly useful for therapeutic purposes, notably for triggering a specific immune response towards a particular tumor antigen/protein, so as to prevent or treat cancer in a patient in need thereof.

In a further aspect the present invention provides an immunogenic compound according to the present invention, an antigenic peptide according to the present invention, a nanoparticle according to according to the present invention, a cell according to the present invention, a nucleic acid according to the present invention, a host cell according to the present invention, or an immunogenic composition according to the present invention, for use in the prevention and/or in the treatment of a cancer. Preferably said cancer is selected in the group consisting of: melanoma, colorectal cancer or clear cell renal cell carcinoma.

Accordingly, the present invention provides a method for preventing and/or treating a cancer or initiating, enhancing or prolonging an anti-tumor-response in a subject in need thereof comprising administering to the subject

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the nanoparticle according to the present invention,     -   the cell according to the present invention,     -   the nucleic acid according to the present invention,     -   the host cell according to the present invention,     -   the immunogenic composition according to the present invention,         or     -   the combination according to the present invention as described         herein.

Preferably, the cancer is selected from the group consisting of: melanoma, colorectal cancer or clear cell renal cell carcinoma.

Moreover, the present invention provides a method for eliciting or improving, in a subject, an immune response against one or multiple epitopes that is dependent on CD8⁺ cytotoxic T cells, wherein said method comprises administering to said subject any one of:

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the nanoparticle according to the present invention,     -   the cell according to the present invention,     -   the nucleic acid according to the present invention,     -   the host cell according to the present invention,     -   the immunogenic composition according to the present invention,         or     -   the combination according to the present invention as described         herein.

An immune response that is dependent on CD8⁺ response can be determined by evaluating an inflammatory response, a pro-inflammatory cytokine response, including an increase in the expression of one or more of IFN-γ, TNF-α and IL-2 mRNA or protein relative to the level before administration of the compounds of the invention. It can also be measured by an increase in the frequency or absolute number of antigen-specific T cells after administration of the compounds of the invention, measured by HLA-peptide multimer staining, ELISPOT assays, and delayed type hypersensitivity tests. It can also be indirectly measured by an increase in antigen-specific serum antibodies that are dependent on antigen-specific T helper cells.

The present invention also provides a method for eliciting or improving, in a subject, an immune response against one or multiple antigens or antigenic epitopes that is restricted by multiple MHC class I molecules, wherein said method comprises administering to said subject any one of:

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the nanoparticle according to the present invention,     -   the cell according to the present invention,     -   the nucleic acid according to the present invention.     -   the host cell according to the present invention,     -   the immunogenic composition according to the present invention,         or     -   the combination according to the present invention as described         herein.

A method for eliciting or improving, in a subject, an immune response against multiple epitopes as described herein, that is restricted by multiple MHC class I molecules can be determined by evaluating a cytokine response, including an increase in the expression of one or more of IFN-γ, TNF-α and IL-2 mRNA or protein relative to the level before administration of the compounds of the invention, after in vitro stimulation of T cells with individual peptides binding to discrete MHC class I molecules on antigen presenting cells. Restriction to MHC class I molecules can also be validated by using antigen presenting cells expressing MHC class I molecules, or by using MHC class I blocking antibodies. It can also be measured by an increase in the frequency or absolute number of antigen-specific T cells after administration of the compounds of the invention, measured by HLA-peptide multimer staining, using multimers assembled with MHC class I molecules.

Thus, in another aspect, the invention relates to a composition as defined above, for use as a medicament. Moreover,

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the nanoparticle according to the present invention,     -   the cell according to the present invention,     -   the nucleic acid according to the present invention,     -   the host cell according to the present invention,     -   the immunogenic composition according to the present invention,         or     -   the combination according to the present invention as described         herein

may be used as a medicament.

The invention relates more particularly to a composition as defined above, for use as a vaccine for immunotherapy. Moreover,

-   -   the immunogenic compound according to the present invention,     -   the antigenic peptide according to the present invention,     -   the nanoparticle according to the present invention,     -   the cell according to the present invention,     -   the nucleic acid according to the present invention,     -   the host cell according to the present invention,     -   the immunogenic composition according to the present invention,         or     -   the combination according to the present invention as described         herein

may be used as vaccine, in particular for (cancer) immunotherapy.

As used in the context of the present invention, the term “vaccine” refers to a biological preparation that provides innate and/or adaptive immunity, typically to a particular disease, preferably cancer. Thus, a vaccine supports in particular an innate and/or an adaptive immune response of the immune system of a subject to be treated. For example, the antigenic peptide according to the present invention typically leads to or supports an adaptive immune response in the patient to be treated.

In the context of the present invention, the vaccine (composition) can induce a specific immune response against a tumor antigen/protein, and is thus preferably used to prevent or treat cancer. It can also be referred herein as a cancer vaccine.

Accordingly, in a preferred embodiment, the invention relates to a composition as defined above, for use in the prevention and/or treatment of cancer in a subject in need thereof. More precisely, the invention relates to the use of the composition of the invention for manufacturing a medicament to prevent or treat cancer in a subject in need thereof.

In other words, the invention relates to a method for preventing or treating cancer in a subject in need thereof, comprising administering an effective amount of the composition of the invention, to said subject.

Methods of administration of a medicament are well-known to the skilled person in the art. With regard to the composition of the invention, it can be directly administered into the subject, into the affected organ (i.e. local administration) or systemically (i.e. enteral or parenteral administration), or even applied ex vivo to cells derived from the subject or a human cell line which are subsequently administered to the subject, or even used in vitro to select a subpopulation of immune cells derived from the subject, which are then re-administered to the said subject. Enteral administrations as used herein includes oral and rectal administrations, as well as administrations via gastric feeding tubes, duodenal feeding tubes or gastrostomy, while parenteral administrations includes, among others, subcutaneous, intravenous, intramuscular, intra-arterial, intradermal, intraosseous, intracerebral, and intrathecal injections. The administration method will often depend upon the antigenic peptide(s) and/or immunogenic compound(s) present in the composition, and the type of cancer to be treated and other active agents that may be contained in said composition. For example, the administration is preferably an intramuscular or an intradermal injection if the immunogenic compound is a nucleic acid as defined above, the oral/nasal administration being particularly preferred if said nucleic acid is cloned into a viral vector. Alternatively, the administration is preferably an intramuscular, an intradermal or an oral administration if the antigenic peptide and/or immunogenic compound is a (poly)peptide as defined above or if it is loaded in/on a nanoparticle as described herein. Yet, still alternatively, the administration is preferably an oral administration if the antigenic peptide and/or immunogenic compound is delivered in the form of a gut bacterium as defined above, notably if the gut bacterium is in the form of probiotics.

The antigenic peptides and/or immunogenic compounds according to the invention can further be encapsulated so as to facilitate their administration to the subject in need thereof. For example, those may be encapsulated into peptide nanocarriers (preferable if the immunogenic compound is a nucleic acid or a (poly)peptide), into virosomes (preferable if the immunogenic compound is a nucleic acid or a (poly)peptide), or into lipid-based carrier systems such as liposome-polycation-DNA complex (preferable if the immunogen is a nucleic acid or a (poly)peptide) (Trovato M, De Berardinis P. Novel antigen delivery systems. World J Virol. 2015 Aug. 12; 4(3):156-68; Saade F, Petrovsky N. Technologies for enhanced efficacy of DNA vaccines. Expert Rev Vaccines. 2012 February; 11(2):189-209; L1 et al., Peptide Vaccine: Progress and Challenges. Vaccines (Basel). 2014 Jul. 2; 2(3):515-36).

The composition may also be administered more than once so as to achieve the desired effect. In a preferred embodiment, said composition is administered repeatedly, at least twice, and preferably more than twice. This can be done over an extended period of time, such as weekly, every other week, monthly, yearly, or even several years after the first administration to ensure that the subject is properly immunized.

According to one embodiment, an antigenic peptide or an immunogenic compound according to the invention may be used for the preparation of a composition and/or of an immunogenic composition for preventing or treating cancer in a subject in need thereof.

Combination Therapy

The administration of the antigenic peptide according to the present invention, the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, and the immunogenic composition according to the present invention, in particular in the methods and uses according to the invention, can be carried out alone or in combination with a co-agent useful for treating and/or preventing cancer, such as an anti-cancer therapeutic agent.

Said therapeutic agent is thus preferably capable of preventing and/or treating the same type of cancer as the one for which the antigenic peptide according to the invention is used. Particularly preferred anti-cancer therapeutic agents according to the invention include, without limitation, antibodies, tumor cell lysates, chemotherapeutic agents, radiotherapeutic agents, immune checkpoint modulators and combinations thereof.

Antibodies are particularly advantageous in cancer therapy as they can either bind to specific antigens on cancer cell surfaces, thereby directing the therapy to the tumor (i.e. these are referred as tumor-targeting antibodies), or block immune checkpoints that are dysregulated in cancer (i.e. these are referred herein as immunomodulatory antibodies). The purpose of the later type of antibodies is to inhibit cancer immune resistance, which can notably be observed against T cells that are specific for tumour antigens. Indeed, as well-known in the art, under normal physiological conditions, immune checkpoints are crucial for the maintenance of self-tolerance (i.e. prevention of autoimmunity) and protect tissues from damage when the immune system is responding to pathogenic infection. However, in cancer, immune-checkpoints expression can be dysregulated as an important mechanism of immune resistance. Said resistance has notably been observed in melanoma, ovarian, lung, glioblastoma, breast, and pancreatic cancers with regard to the PD-L1 checkpoint (Konishi et al., B7-H1 expression on non-small cell lung cancer cells and its relationship with tumor-infiltrating lymphocytes and their PD-1 expression. Clin Cancer Res. 2004 Aug. 1; 10(15):5094-100; Ghebeh et al., The B7-H1 (PD-L1) T lymphocyte-inhibitory molecule is expressed in breast cancer patients with infiltrating ductal carcinoma: correlation with important high-risk prognostic factors. Neoplasia. 2006 March; 8(3):190-8; Hino et al., Tumor cell expression of programmed cell death-1 ligand 1 is a prognostic factor for malignant melanoma. Cancer. 2010 Apr. 1; 116(7):1757-66). Other examples of immune checkpoints include, without limitation, PD-L2, PD1, CD80, CD86, CTLA4, B7H3, B7H4, PVR, TIGIT, GAL9, LAG-3, GITR, CD137, TIM3, VISTA, VISTA-R (Pico de Coaña et al., Checkpoint blockade for cancer therapy: revitalizing a suppressed immune system. Trends Mol Med. 2015 August; 21(8):482-91; Pardoll DM1. The blockade of immune checkpoints in cancer immunotherapy. Nat Rev Cancer. 2012 Mar. 22; 12(4):252-64).

Antibodies are usually employed for the above purposes either in the form of naked monoclonal antibodies (i.e. non-conjugated), or conjugated to another molecule which can be toxic to cells or radioactive.

Examples of well-known monoclonal tumor-targeting antibodies used in cancer immunotherapy include, without limitation, alemtuzumab (chronic lymphocytic leukemia), bevacizumab (colorectal cancer, glioblastoma multiforme, cervical cancer, lung cancer, renal cancer), brentuximab/vedotin (lymphomas), blinatumumab (acute lymphoblastic leukemia), catumaxomab (malignant ascites in EPCAM+ cancers), cetuximab (head and neck cancer, colorectal cancer), denosumab (breast, prostate and bone cancers), Gemtuzumab/ozogamicin (acute myeloid keulemia), ibritumomab/tiuxetan (non-Hodgkin lymphoma), panitumumab (colorectal cancer), pertuzumab (breast cancer), obinutuzumab (chronic lymphocytic leukemia), ofatumumab (chronic lymphocytic leukemia), opilimumab (melanoma), ramucirumab (gastric and gastro-oeasophageal cancers), rituximab (chronic lymphocytic leukemia and non-Hodgkin lymphoma), siltuximab (multicentric's Catsleman's disease), tositumomab (non-Hodgkin lymphoma), and trastuzumab (breast, gastric and gastro-oeasophageal cancers); while examples of immunomodulatory antibodies include, without limitation, ipilimumab (melanoma) which blocks the CTLA4-dependent immune checkpoint, nivolumab (melanoma, lung cancer) and prembrolizubmab (melanoma) which both block the PDCD1-dependent immune checkpoint, as well as MPDL3280A, MEDI4736, MEDI0680, and MSB0010718C which all block the PD-L1-dependent immune checkpoint (Sharma and Allison, The future of immune checkpoint therapy. Science. 2015 Apr. 3; 348(6230):56-61).

Other antibodies for cancer immunotherapy have been described in Buqué et al. (Buqué et al., Trial Watch: Immunomodulatory monoclonal antibodies for oncological indications. Oncoimmunology. 2015 Mar. 2; 4(4):e1008814. eCollection 2015 April), Redman et al. (Redman et al., Mechanisms of action of therapeutic antibodies for cancer. Mol Immunol. 2015 October; 67(2 Pt A):28-45), and in Simpson and Caballero, Monoclonal antibodies for the therapy of cancer MC Proc. 2014; 8(Suppl 4): 06 as well as on the antibody society website (list of therapeutic monoclonal antibodies approved or in review in the European Union or United States available on the weblink http://www.antibodysociety.org/news/approved_mabs.php).

Tumor cell lysates may also be combined with the antigenic peptide(s) according to the invention. Tumor cells are indeed capable of priming the immune response, by presenting endogenous peptides-MHC complexes, as well as via dendritic cells (DCs) of the host which can process and present the antigen delivered by said lysates. The range of antigens against which an immune response can be induced is thereby increased. Tumor cell lysates can be easily obtained by treating tumor cells with a heat shock and/or a chemical treatment, and can be autologous (i.e. isolated from the patient), or allogeneic (i.e. isolated from another subject).

Standard chemotherapeutic drugs and radiotherapeutic agents need not be further described herein as they have been extensively described in the literature, notably by Baskar et al. (Baskar et al., Cancer and radiation therapy: current advances and future directions. Int J Med Sci. 2012; 9(3):193-9), Paci et al. (Paci et al., Review of therapeutic drug monitoring of anticancer drugs part 1-cytotoxics. Eur J Cancer. 2014 August; 50(12):2010-9) and Widmer et al. (Widmer et al., Review of therapeutic drug monitoring of anticancer drugs part two-targeted therapies. Eur J Cancer. 2014 August; 50(12):2020-36). A list of such drugs and agents is also available on the cancer.gov website (http://www.cancer.gov/about-cancer/treatment/drugs).

Preferably, the immune checkpoint modulator for combination with the antigenic peptide as defined herein is an activator or an inhibitor of one or more immune checkpoint point molecule(s) selected from CD27, CD28, CD40, CD122, CD137, OX40, GITR, ICOS, A2AR, B7-H3, B7-H4, BTLA, CD40, CTLA-4, IDO, KIR, LAG3, PD-1, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, GITR, TNFR and/or FasR/DcR3; or an activator or an inhibitor of one or more ligands thereof.

More preferably, the immune checkpoint modulator is an activator of a (co-)stimulatory checkpoint molecule or an inhibitor of an inhibitory checkpoint molecule or a combination thereof. Accordingly, the immune checkpoint modulator is more preferably (i) an activator of CD27, CD28, CD40, CD122, CD137, OX40, GITR and/or ICOS or (ii) an inhibitor of A2AR, B7-H3, B7-H4, BTLA, CD40, CTLA-4, IDO, KIR, LAG3, PD-1, PDL-1, PD-L2, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, TNFR and/or FasR/DcR3.

Even more preferably, the immune checkpoint modulator is an inhibitor of an inhibitory checkpoint molecule (but preferably no inhibitor of a stimulatory checkpoint molecule). Accordingly, the immune checkpoint modulator is even more preferably an inhibitor of A2AR, B7-H3, B7-H4, BTLA, CTLA-4, IDO, KIR, LAG3, PD-1, PDL-1, PD-L2, TIM-3, VISTA, CEACAM1, GARP, PS, CSF1R, CD94/NKG2A, TDO, TNFR and/or DcR3 or of a ligand thereof.

It is also preferred that the immune checkpoint modulator is an activator of a stimulatory or costimulatory checkpoint molecule (but preferably no activator of an inhibitory checkpoint molecule). Accordingly, the immune checkpoint modulator is more preferably an activator of CD27, CD28, CD40, CD122, CD137, OX40, GITR and/or ICOS or of a ligand thereof.

It is even more preferred that the immune checkpoint modulator is a modulator of the CD40 pathway, of the IDO pathway, of the LAG3 pathway, of the CTLA-4 pathway and/or of the PD-1 pathway. In particular, the immune checkpoint modulator is preferably a modulator of CD40, LAG3, CTLA-4, PD-L1, PD-L2, PD-1 and/or IDO, more preferably the immune checkpoint modulator is an inhibitor of CTLA-4, PD-L1, PD-L2, PD-1, LAG3, and/or IDO or an activator of CD40, even more preferably the immune checkpoint modulator is an inhibitor of CTLA-4, PD-L1, PD-1, LAG3 and/or IDO, even more preferably the immune checkpoint modulator is an inhibitor of LAG3, CTLA-4 and/or PD-1, and most preferably the immune checkpoint modulator is an inhibitor of CTLA-4 and/or PD-1.

Accordingly, the checkpoint modulator for combination with the antigenic peptide may be selected from known modulators of the CTLA-4 pathway or the PD-1 pathway. Preferably, the checkpoint modulator for combination with the antigenic peptide as defined herein may be selected from known modulators of the the CTLA-4 pathway or the PD-1 pathway. Particularly preferably, the immune checkpoint modulator is a PD-1 inhibitor. Preferred inhibitors of the CTLA-4 pathway and of the PD-1 pathway include the monoclonal antibodies Yervoy® (Ipilimumab; Bristol Myers Squibb) and Tremelimumab (Pfizer/MedImmune) as well as Opdivo® (Nivolumab; Bristol Myers Squibb), Keytruda® (Pembrolizumab; Merck), Durvalumab (MedImmune/AstraZeneca), MEDI4736 (AstraZeneca; cf. WO 2011/066389 A1), MPDL3280A (Roche/Genentech; cf. U.S. Pat. No. 8,217,149 B2), Pidilizumab (CT-011; CureTech), MEDI0680 (AMP-514; AstraZeneca), MSB-0010718C (Merck), MIH1 (Affymetrix) and Lambrolizumab (e.g. disclosed as hPD109A and its humanized derivatives h409All, h409A16 and h409A17 in WO2008/156712; Hamid et al., 2013; N. Engl. J. Med. 369: 134-144). More preferred checkpoint inhibitors include the CTLA-4 inhibitors Yervoy® (Ipilimumab; Bristol Myers Squibb) and Tremelimumab (Pfizer/MedImmune) as well as the PD-1 inhibitors Opdivo® (Nivolumab; Bristol Myers Squibb), Keytruda® (Pembrolizumab; Merck), Pidilizumab (CT-011; CureTech), MEDI0680 (AMP-514; AstraZeneca), AMP-224 and Lambrolizumab (e.g. disclosed as hPD109A and its humanized derivatives h409All, h409A16 and h409A17 in WO2008/156712; Hamid O. et al., 2013; N. Engl. J. Med. 369: 134-144.

It is also preferred that the immune checkpoint modulator for combination with the antigenic peptide as defined herein is selected from the group consisting of Pembrolizumab, Ipilimumab, Nivolumab, MPDL3280A, MEDI4736, Tremelimumab, Avelumab, PDR001, LAG525, INCB24360, Varlilumab, Urelumab, AMP-224 and CM-24.

It is within the skill of ordinary person in the art to select the appropriate immune anti-cancer therapeutic agent for the purposes of the invention. For example, should one wish to prevent or treat melanoma, a lysate from melanoma cells and/or the antibody opilimumab can preferably be used, along with the corresponding antigenic peptide according to the present invention as described herein.

The anti-cancer therapeutic agent can also be administered in association with the antigenic peptide according to the present invention, the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention, either at about the same time or consecutively as described herein and in the same or distinct pharmaceutical forms.

Thus, in another aspect, the invention relates to a composition of the invention and at least one anti-cancer therapeutic agent as described above, as a combined preparation for a simultaneous, separate, or sequential administration. In other terms, the invention proposes a combined use of the composition the invention and least one anti-cancer therapeutic agent as described above, for a simultaneous, separate, or sequential administration.

Moreover, the present invention also provides the combination of (at least) two distinct antigenic peptides according to the present invention as described herein. Preferably (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) any other antigenic peptide according to the present invention, namely, an antigenic peptide comprising or consisting of an amino acid sequence according to any one of SEQ ID NOs 1 to 30, 32 to 242 and 267 to 274 are combined. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 1. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 2. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 3. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 4. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 5. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 6. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 7. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 8. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 9. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 10. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 11. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 12. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 13. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 14. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 15. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 16. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 17. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 18. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 19. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 20. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 21. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 22. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 23. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 24. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 25. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 26. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 27. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 28. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 29. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 30. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 32. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 33. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 34. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 35. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 36. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 37. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 38. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 39. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 40. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 41. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 42. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 43. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 44. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 45. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 46. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 47. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 48. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 49. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 50. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 51. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 52. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 53. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 54. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 55. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 56. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 57. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 58. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 59. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 60. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 61. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 62. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 63. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 64. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 65. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 66. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 67. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 68. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 69. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 70. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 71. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 72. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 73. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 74. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 75. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 76. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 77. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 78. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 79. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 80. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 81. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 82. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 83. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 84. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 85. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 86. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 87. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 88. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 89. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 90. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 91. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 92. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 93. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 94. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 95. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 96. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 97. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 98. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 99. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 100. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 101. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 102. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 103. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 104. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 105. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 106. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 107. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 108. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 109. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 110. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 111. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 112. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 113. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 114. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 115. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 116. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 117. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 118. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 119. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 120. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 121. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 122. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 123. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 124. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 125. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 126. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 127. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 128. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 129. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 130. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 131. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 132. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 133. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 134. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 135. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 136. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 137. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 138. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 139. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 140. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:141. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 142. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 143. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 144. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 145. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 146. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 147. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 148. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 149. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 150. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 151. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 152. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 153. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 154. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 155. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 156. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 157. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 158. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 159. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 160. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 161. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 162. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:163. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 164. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 165. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 166. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 167. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 168. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 169. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 170. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 171. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 172. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 173. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 174. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 175. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 176. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 177. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 178. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 179. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 180. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 181. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 182. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 183. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 184. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 185. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 186. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 187. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 188. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 189. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 190. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 191. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 193. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 194. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:195. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 196. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 197. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 198. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 199. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 200. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 201. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 202. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 203. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 204. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 205. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 206. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 207. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 208. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 209. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 210. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 211. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 212. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 213. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 214. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 215. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 216. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 217. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 218. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 219. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 220. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 221. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 222. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 223. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 224. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 225. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 226. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 227. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 228. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 229. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 230. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 231. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 232. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 233. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 234. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 235. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 236. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 237. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 238. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 239. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 240. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 241. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 242. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 267. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 268. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:269. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 270. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 271. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 272. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 273. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 274.

It is also preferred that (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) any other antigenic peptide according to the present invention, namely, an antigenic peptide comprising or consisting of an amino acid sequence according to any one of SEQ ID NOs 1 to 191, 193 to 242 and 267 to 274 are combined. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 1. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 2. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 3. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 4. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 5. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 6. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 7. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 8. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 9. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 10. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 11. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 12. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 13. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 14. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 15. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 16. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 17. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 18. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 19. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 20. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 21. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 22. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 23. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 24. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 25. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 26. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 27. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 28. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 29. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 30. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 32. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 33. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 34. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 35. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 36. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 37. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 38. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 39. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 40. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 41. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 42. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 43. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 44. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 45. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 46. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 47. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 48. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 49. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 50. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 51. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 52. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 53. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 54. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 55. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 56. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 57. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 58. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 59. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 60. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 61. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 62. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 63. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 64. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 65. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 66. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 67. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 68. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 69. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 70. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 71. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 72. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 73. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 74. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 75. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 76. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 77. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 78. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 79. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 80. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 81. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 82. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 83. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 84. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 85. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 86. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 87. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 88. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 89. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 90. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 91. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 92. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 93. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 94. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 95. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 96. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 97. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 98. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 99. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 100. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 101. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 102. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 103. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 104. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 105. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 106. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 107. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 108. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 109. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 110. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 111. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 112. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 113. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 114. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 115. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 116. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 117. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 118. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 119. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 120. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 121. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 122. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 123. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 124. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 125. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 126. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 127. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 128. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 129. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 130. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 131. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 132. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 133. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 134. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 135. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 136. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 137. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 138. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 139. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 140. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:141. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 142. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 143. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 144. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 145. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 146. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 147. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 148. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 149. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 150. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 151. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 152. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 153. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 154. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 155. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 156. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 157. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 158. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 159. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 160. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 161. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 162. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:163. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 164. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 165. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 166. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 167. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 168. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 169. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 170. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 171. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 172. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 173. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 174. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 175. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 176. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 177. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 178. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 179. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 180. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 181. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 182. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 183. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 184. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 185. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 186. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 187. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 188. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 189. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 190. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 191. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 193. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 194. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:195. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 196. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 197. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 198. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 199. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 200. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 201. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 202. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 203. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 204. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 205. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 206. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 207. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 208. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 209. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 210. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 211. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 212. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 213. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 214. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 215. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 216. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 217. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 218. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 219. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 220. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 221. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 222. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 223. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 224. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 225. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 226. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 227. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 228. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 229. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 230. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 231. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 232. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 233. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 234. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 235. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 236. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 237. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 238. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 239. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 240. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 241. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 242. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 267. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 268. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO:269. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 270. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 271. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 272. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 273. For example, the combination of (at least) two antigenic peptides according to the present invention may comprise (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 274.

Most preferably (i) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31 and (ii) the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192 are combined.

Moreover, the antigenic peptide according to the present invention may also be combined with the corresponding (human) tumor antigen epitope (as described above regarding the peptide “families”). Thereby, selection of T-cell clones, which are very efficient against the tumor, is obtained/supported. In particular, the antigenic peptide according to the present invention and the corresponding (human) tumor antigen epitope may be co-administered. Such co-administration may be at about the same time (simultaneously) or consecutively, whereby in consecutive administration it is preferred that the antigenic peptide according to the present invention is administered first and the corresponding (human) tumor antigen epitope is administered thereafter. In particular, the antigenic peptide according to the present invention may be administered first, and the corresponding (human) tumor antigen epitope may be used as (re)boost. For example, the antigenic peptide according to SEQ ID NO: 31 may be combined with the reference peptide according to SEQ ID NO: 263. In another example, the antigenic peptide according to SEQ ID NO: 192 may be combined with the reference peptide according to SEQ ID NO: 245.

Both peptides, which are to be combined, such as (a) the antigenic peptide according to the present invention and the corresponding (human) tumor antigen epitope or (b) two distinct antigenic peptides according to the present invention, may be administered

-   -   in the same immunogenic compound according to the present         invention or in distinct immunogenic compounds according to the         present invention,     -   (loaded) in the same nanoparticle according to the present         invention or in distinct nanoparticles according to the present         invention,     -   (loaded) in the same cell according to the present invention or         in distinct cells according to the present invention,     -   (encoded by) the same nucleic acid according to the present         invention or by distinct nucleic acids according to the present         invention,     -   (expressed by) the same host cell according to the present         invention or by distinct host cells according to the present         invention, or     -   (comprised) in the same immunogenic composition according to the         present invention or in distinct immunogenic composition         according to the present invention.

For example, the present invention provides a combination of

(i) an immunogenic compound according to the present invention comprising a first antigenic peptide according to the present invention, and

(ii) an immunogenic compound according to the present invention comprising a second antigenic peptide according to the present invention for use in the prevention and/or treatment of a cancer.

A particularly preferred combination according to the present invention comprises

(i) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an immunogenic compound according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

For example, the present invention provides a combination of

(i) a first antigenic peptide according to the present invention, and

(ii) a second antigenic peptide according to the present invention for use in the prevention and/or treatment of a cancer.

A particularly preferred combination according to the present invention comprises

(i) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) an antigenic peptide according to the present invention having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

For example, the present invention provides a combination of

(i) a nanoparticle according to the present invention comprising a first antigenic peptide according to the present invention, and

(ii) a nanoparticle according to the present invention comprising a second antigenic peptide according to the present invention

for use in the prevention and/or treatment of a cancer.

A particularly preferred combination according to the present invention comprises

(i) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 31, and

(ii) a nanoparticle according to the present invention comprising an antigenic peptide having an amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

For example, the present invention provides a combination of

(i) a nucleic acid according to the present invention comprising a polynucleotide encoding a first antigenic peptide according to the present invention and

(ii) a nucleic acid according to the present invention comprising a polynucleotide encoding a first antigenic peptide according to the present invention for use in the prevention and/or treatment of a cancer.

A particularly preferred combination according to the present invention comprises

(i) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 31 and

(ii) a nucleic acid according to the present invention comprising a polynucleotide encoding the amino acid sequence as set forth in SEQ ID NO 192

for use in the prevention and/or treatment of a cancer.

Preferably, both peptides, which are to be combined, such as (a) the antigenic peptide according to the present invention and the corresponding (human) tumor antigen epitope or (b) two distinct antigenic peptides according to the present invention, in particular components (i) and (ii), are administered at about the same time. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the first (antigenic) peptide component”) is administered at about the same time as the second (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the second (antigenic) peptide component”), wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, both as immunogenic compositions, etc.).

“At about the same time”, as used herein, means in particular simultaneous administration or that directly after administration of (i) the first (antigenic) peptide component, (ii) the second (antigenic) peptide component is administered or directly after administration of (ii) the second (antigenic) peptide component (i) the first (antigenic) peptide component is administered. The skilled person understands that “directly after” includes the time necessary to prepare the second administration—in particular the time necessary for exposing and disinfecting the location for the second administration as well as appropriate preparation of the “administration device” (e.g., syringe, pump, etc.). Simultaneous administration also includes if the periods of administration of (i) the first (antigenic) peptide component and of (ii) the second (antigenic) peptide component overlap or if, for example, one component is administered over a longer period of time, such as 30 min, 1 h, 2 h or even more, e.g. by infusion, and the other component is administered at some time during such a long period. Administration of (i) the first (antigenic) peptide component and of (ii) the second (antigenic) peptide component at about the same time is in particular preferred if different routes of administration and/or different administration sites are used.

It is also preferred that both peptides, which are to be combined, such as (a) the antigenic peptide according to the present invention and the corresponding (human) tumor antigen epitope or (b) two distinct antigenic peptides according to the present invention, in particular components (i) and (ii), are administered consecutively. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the first (antigenic) peptide component”) and the second (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the second (antigenic) peptide component”) are administered consecutively, wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, both as immunogenic compositions, etc.).

This means that (i) the first (antigenic) peptide component is administered before or after (ii) the second (antigenic) peptide component. In consecutive administration, the time between administration of the first component and administration of the second component is preferably no more than one week, more preferably no more than 3 days, even more preferably no more than 2 days and most preferably no more than 24 h. It is particularly preferred that (i) the first (antigenic) peptide component and (ii) the second (antigenic) peptide component are administered at the same day with the time between administration of the first component (the first or the second (antigenic) peptide) and administration of the second component (the other of the first or the second (antigenic) peptide) being preferably no more than 6 hours, more preferably no more than 3 hours, even more preferably no more than 2 hours and most preferably no more than 1 h.

Preferably, (i) the first (antigenic) peptide component and (ii) the second (antigenic) peptide component are administered via the same route of administration. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the first (antigenic) peptide component”) and the second (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the second (antigenic) peptide component”) are administered via the same route of administration, wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, both as immunogenic compositions, etc.).

It is also preferred that components (i) and (ii) are administered via distinct routes of administration. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the first (antigenic) peptide component”) and the second (antigenic) peptide component (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, the host cell according to the present invention, or the immunogenic composition according to the present invention; referred to herein as “the second (antigenic) peptide component”) are administered via distinct routes of administration, wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, both as immunogenic compositions, etc.).

Preferably, components (i) and (ii) are comprised in the same composition. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, or the host cell according to the present invention; referred to herein as “the first (antigenic) peptide component”) and the second (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, or the host cell according to the present invention; referred to herein as “the second (antigenic) peptide component”) are comprised in the same composition, wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, etc.).

It is also preferred that components (i) and (ii) are comprised in distinct compositions. In more general, it is preferred that the first (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 31) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, or the host cell according to the present invention; referred to herein as “the first (antigenic) peptide component”) and the second (antigenic) peptide (e.g., the antigenic peptide comprising or consisting of an amino acid sequence according to SEQ ID NO: 192) in any formulation (e.g., in the form of the immunogenic compound according to the present invention, the nanoparticle according to the present invention, the cell according to the present invention, the nucleic acid according to the present invention, or the host cell according to the present invention; referred to herein as “the second (antigenic) peptide component”) are comprised in distinct compositions, wherein both (antigenic) peptides are preferably administered in the same form (i.e., in the same type of formulation, e.g., both as nanoparticles, etc.).

EXAMPLES

Examples 1 and 2 are both linked to the general protocol described in FIG. 1 .

Example 1: Identification of a Candidate Antigenic Peptide Having Superior Affinity to the HLA-A*0201 Allele

This Example provides evidence that the antigenic peptide of sequence SEQ ID NO 31 («FLPFGFILV» also referred herein as IL13RA2-B) has high affinity to the HLA-A*0201 allele, whereas the corresponding reference human peptide derived from IL13RA2 («WLPFGFILI», SEQ ID NO 263, also referred herein as IL13RA2-H) has low affinity.

A. Materials and Methods

A1. Measuring the Affinity of the Peptide to T2 Cell Line.

The experimental protocol is similar to the one that was validated for peptides presented by the HLA-A*0201 (Tourdot et al., A general strategy to enhance immunogenicity of low-affinity HLA-A2.1-associated peptides: implication in the identification of cryptic tumor epitopes. Eur J Immunol. 2000 December; 30(12):3411-21). Affinity measurement of the peptides is achieved with the human tumoral cell T2 which expresses the HLA-A*0201 molecule, but which is TAP1/2 negative and incapable of presenting endogenous peptides.

T2 cells (2·10⁵ cells per well) are incubated with decreasing concentrations of peptides from 100 μM to 0.1 μM in a AIMV medium supplemented with 100 ng/μl of human β2m at 37° C. for 16 hours. Cells are then washed two times and marked with the anti-HLA-A2 antibody coupled to PE (clone BB7.2, BD Pharmagen).

The analysis is achieved by FACS (Guava Easy Cyte).

For each peptide concentration, the geometric mean of the labelling associated with the peptide of interest is substracted from background noise and reported as a percentage of the geometric mean of the HLA-A*0202 labelling obtained for the reference peptide HIV pol 589-597 at a concentration of 100 μM. The relative affinity is then determined as follows:

relative affinity=concentration of each peptide inducing 20% of expression of HLA-A*0201/concentration of the reference peptide inducing 20% of expression of HLA-A*0201.

A2. Solubilisation of Peptides

Each peptide is solubilized by taking into account the amino acid composition. For peptides which do not include any Cystein, Methionin, or Tryptophane, the addition of DMSO is possible to up to 10% of the total volume. Other peptides are resuspended in water or PBS pH7.4.

B. Results

For T2 Cells: Mean fluorescence intensity for variable peptidic concentrations: Regarding the couple IL13RA2 peptides (IL13RA2-H and IL13RA2-B), it appears that the human peptide does not bind to the HLA-A*0201 contrarily to the candidate peptide IL13RA2-B, which binds strongly to HLA-A*0201: 112.03 vs 18.64 at 100 μM; 40.77 vs 11.61 at 10 μM; 12.18 vs 9.41 at 1 μM; 9.9 vs 7.46 at 0.1 μM.

Also, IL13RA2-B at 4.4 μM induces 20% of expression of the HLA-A*0201 (vs 100 μM for IL13RA2-H).

Similar results were obtained from a second distinct T2 cell clone.

Example 2: Vaccination on Mice with the Candidate Antigenic Peptide Induces Improved T Cell Responses in a ELISPOT-IFNγ Assay

A. Materials and Methods

A.1 Mouse Model

The features of the model used in this project are shown in Table 2.

TABLE 2 Model features. Mouse Model C57BL/6J B2m^(tm1Unc)IAb^(−/−)Tg(HLA-DRA HLA- DRB1*0301)^(#Gjh)Tg(HLA-A/H2-D/B2M)^(1Bpe) Acronym β/A2/DR3 Description Immunocompetent, no mouse class I and class II MHC Housing SOPF conditions (ABSL3) Number of mice 24 adults (>8 weeks of age)

A.2. Immunization Scheme.

The immunization scheme is shown in FIG. 2 . Briefly, 14 β/A2/DR3 mice were assigned randomly (based on mouse sex and age) to two experimental groups, each immunized with a specific vaccination peptide (vacc-pAg) combined to a common helper peptide (h-pAg) (as outlined in Table 3 below). The vacc-pAg were compared in couples (group 1 vs. group 2). Thereby, both native and optimized versions of a single peptide were compared in each wave.

TABLE 3 Experimental group composition. h-pAg: ‘helper’ peptide; vacc-pAg: vaccination peptide. The number of boost injections is indicated into brackets. Group Peptide (vacc-pAg) Helper (h-pAg) Prime Boost Animal number 1 IL13RA2-B (100 μg) HHD-DR3 (150 μg) + + (1X) 6 2 IL13RA2-H (100 μg) HHD-DR3 (150 μg) + + (1X) 6

The peptides were provided as follows:

-   -   couples of vacc-pAg: IL13RA2-H and IL13RA2-B; all produced and         provided at a 4 mg/ml (4 mM) concentration;     -   h-pAg: HHD-DR3; provided lyophilized (50.6 mg; Eurogentec         batch 1611166) and re-suspended in pure distilled water at a 10         mg/mL concentration;

The animals were immunized on day 0 (d0) with a prime injection, and on d14 with a boost injection. Each mouse was injected s.c. at tail base with 100 μL of an oil-based emulsion that contained:

-   -   100 μg of vacc-pAg (25 μL of 4 mg/mL stock per mouse);     -   150 μg of h-pAg (15 μL of 10 mg/mL stock per mouse);     -   10 μL of PBS to reach a total volume of 50 μL (per mouse);     -   Incomplete Freund's Adjuvant (IFA) added at 1:1 (v:v) ratio (50         μL per mouse).

A separate emulsion was prepared for each vacc-pAg, as follows: IFA reagent was added to the vacc-pAg/h-pAg/PBS mixture in a 15 mL tube and mixed on vortex for repeated cycles of 1 min until forming a thick emulsion.

A.3. Mouse Analysis

Seven days after the boost injection (i.e. on d21), the animals were euthanized and the spleen was harvested. Splenocytes were prepared by mechanical disruption of the organ followed by 70 μm-filtering and Ficoll density gradient purification.

The splenocytes were immediately used in an ELISPOT-IFNγ assay (Table 4). Experimental conditions were repeated in quadruplets, using 2*105 total splenocytes per well, and were cultured in presence of vacc-pAg (10 μM), Concanavalin A (ConA, 2.5 μg/mL) or medium-only to assess for their capacity to secrete IFNγ. The commercial ELISPOT-IFNγ kit (Diaclone Kit Mujrine IFNγ ELISpot) was used following the manufacturer's instructions, and the assay was performed after about 16h of incubation.

TABLE 4 Setup of the ELISPOT-IFNγ assay. Group Stimulus Wells Animal Total 1 IL13RA2-B (10 μM) 4 6 24 IL13RA2-H (10 μM) 4 6 24 ConA (2.5 μg/ml) 4 6 24 Medium 4 6 24 2 IL13RA2-B (10 μM) 4 6 24 IL13RA2-H (10 μM) 4 6 24 ConA (2.5 μg/ml) 4 6 24 Medium 4 6 24

Spots were counted on a Grand ImmunoSpot® S6 Ultimate UV Image Analyzer interfaced to the ImmunoSpot 5.4 software (CTL-Europe). Data plotting and statistical analysis were performed with the Prism-5 software (GraphPad Software Inc.).

The cell suspensions were also analyzed by flow cytometry, for T cell counts normalization. The monoclonal antibody cocktail (data not shown) was applied on the purified leucocytes in presence of Fe-block reagents targeting murine (1:10 diluted ‘anti-mCD16/CD32 CF 11 clone’—internal source) Fc receptors. Incubations were performed in 96-well plates, in the dark and at 4° C. for 15-20 minutes. The cells were washed by centrifugation after staining to remove the excess of monoclonal antibody cocktail, and were re-suspended in PBS for data acquisition.

All data acquisitions were performed with an LSR-II Fortessa flow cytometer interfaced with the FACS-Diva software (BD Bioscience). The analysis of the data was performed using the FlowJo-9 software (TreeStar Inc.) using a gating strategy (not shown).

TABLE 5 FACS panel EXP-1. Target Label Clone Provider Dilution mCD3εγ FITC 145-2C11 Biolegend 1/100 mCD4 PE RM4-5 Biolegend 1/100 mCD8α APC 53-6,7 Biolegend 1/100

B. Results

A total of 14 f/A2/DR3 mice were used for this experiment (see Table 6). At time of sacrifice, the spleen T cell population was analysed by flow cytometry, showing that the large majority belonged to the CD4+ T cell subset.

TABLE 6 Individual mouse features (groups 1 & 2). Each mouse is identified by a unique ear tag ID number. Mouse Age^(a) Group T cells^(b) T4^(c) T8^(c) ID Sex (wks) (pAg) (%) (%) (%) Note^(d) 826 M 14 1 (IL13RA2-B) 18.6 72.0 13.7  P1/2 827 M 14 1 (IL13RA2-B) 21.1 82.5 8.7 P1/2 828 M 14 1 (IL13RA2-B) 20.9 78.4 8.6 P1/2 829 F 15 1 (IL13RA2-B) 23.8 67.0 17.5  P1/2 830 F 15 1 (IL13RA2-B) 29.2 73.3 12.5  P1/2 831 F 15 1 (IL13RA2-B) N.A. N.A. N.A. ID tag lost (excluded) 17 M 9 1 (IL13RA2-B)  8.3 83.7 10.4  P5 832 F 15 2 (IL13RA2-H) 28.3 83.4 5.7 P1/2 833 F 15 2 (IL13RA2-H) N.A. N.A. N.A. ID tag lost (excluded) 834 F 15 2 (IL13RA2-H) 27.5 79.7 7.2 P1/2 835 M 13 2 (IL13RA2-H) 33.8 84.2 8.5 P1/2 836 M 13 2 (IL13RA2-H) 31.4 84.7 6.3 P1/2 837 M 15 2 (IL13RA2-H) 30.8 83.4 5.4 P1/2 18 M 9 2 (IL13RA2-H) 11.2 85.9 9.2 P5 ^(a)age at onset of the vaccination protocol (in weeks); ^(b)percentage of T cells in total leukocytes; ^(c)percentage of CD4+ or CD8+ T cells in total T cells; ^(d)plate (P) number.

After plating and incubation with the appropriate stimuli, the IFNγ-producing cells were revealed and counted. The data were then normalized as a number of specific spots (the average counts obtained in the ‘medium only’ condition being subtracted) per 10⁶ total T cells.

The individual average values (obtained from the quadruplicates) were next used to plot the group average values (see FIG. 3A). As the functional capacity of T cells might vary from individual to individual, the data were also expressed as the percentage of the ConA response per individual (see FIG. 3B).

Overall, vaccination with the IL13RA2-B pAg (candidate) peptide induced improved T cell responses in the ELISPOT-IFNγ assay, as compared to IL13RA2-H pA (reference human)-vaccinated animals (group 2). For group 1 (IL13RA2-B), ex vivo restimulation with the IL13RA2-B pAg promoted higher response than with the IL13RA2-H pAg. It was not the case for group 2 (IL13RA2-H). The percentage of ConA-induced response (mean+/−SEM) for each condition was as follows:

-   -   Group 1 (IL13RA2-B)/IL13RA2-B pAg: 56.3%+/−18.1     -   Group 1 (IL13RA2-B)/IL13RA2-H pAg: 32.3%+/−11.8     -   Group 2 (IL13RA2-H)/IL13RA2-B pAg: 2.0%+/−0.8     -   Group 2 (IL13RA2-H)/IL13RA2-H pAg: 1.1%+/−0.8

Accordingly, those results provide experimental evidence that tumor-antigen immunotherapy targeting IL13RA2 is able to improve T cell response in vivo and that the IL13RA2-B candidate peptide (SEQ ID NO 31) is particularly efficient for that purpose.

Example 3: Candidate Antigenic Peptides Having Superior Affinity to the HLA-A*0201 Allele

This Example provides further evidence that the antigenic peptide of sequence SEQ ID NO 31 («FLPFGFILV», also referred to herein as IL13RA2-B) has high affinity to the HLA-A*0201 allele, whereas the corresponding reference human peptide derived from IL13RA2 («WLPFGFILI», SEQ ID NO 263, also referred to herein as IL13RA2-H) has low affinity. Moreover, this Example provides evidence that the antigenic peptide of sequence SEQ ID NO 192 («YLYTFLIST», also referred to herein as IL13RA2-B2) has high affinity to the HLA-A*0201 allele, whereas the corresponding reference human peptide derived from IL13RA2 («CLYTFLIST», SEQ ID NO 245, also referred to herein as IL13RA2-H2) has low affinity.

A. Materials and Methods

A1. Measuring the Affinity of the Peptide to T2 Cell Line.

The experimental protocol was similar to the one that was validated for peptides presented by the HLA-A*0201 (Tourdot et al., A general strategy to enhance immunogenicity of low-affinity HLA-A2.1-associated peptides: implication in the identification of cryptic tumor epitopes. Eur J Immunol. 2000 December; 30(12):3411-21). Affinity measurement of the peptides was achieved with the human tumor cell T2 which expresses the HLA-A*0201 molecule, but which is TAP1/2 negative and incapable of presenting endogenous peptides.

T2 cells (2·10⁵ cells per well) were incubated with decreasing conceontrations of peptides from 100 μM to 0.1 μM in a AIMV medium supplemented with 100 ng/μl of human β2m at 37° C. for 16 hours. Cells were then washed two times and marked with the anti-HLA-A2 antibody coupled to PE (clone BB7.2, BD Pharmagen).

The analysis was achieved by FACS (Guava Easy Cyte).

For each peptide concentration, the geometric mean of the labelling associated with the peptide of interest was subtracted from background noise and reported as a percentage of the geometric mean of the HLA-A*0202 labelling obtained for the reference peptide HIV pol 589-597 at a concentration of 100 μM. The relative affinity is then determined as follows:

relative affinity=concentration of each peptide inducing 20% of expression of HLA-A*0201/concentration of the reference peptide inducing 20% of expression of HLA-A*0201.

A2. Solubilisation of Peptides

Each peptide was solubilized by taking into account the amino acid composition. For peptides which do not include any Cystein, Methionin, or Tryptophane, the addition of DMSO is possible to up to 10% of the total volume. Other peptides are resuspended in water or PBS pH7.4.

B. Results

Results are shown in FIG. 4 . Regarding the two couples of IL13RA2 peptides ((i) IL13RA2-H and IL13RA2-B, and (ii) IL13RA2-H2 and IL13RA2-B2), the human peptides do not bind to or show much lower affinity to HLA-A*0201, whereas the candidate peptides IL13RA2-B and IL13RA2-B2, bind strongly to HLA-A*0201. Moreover, both candidate peptides bind to HLA-A*0201 with higher affinity than the peptide “1A9V” (as described by Eguchi Junichi et al., 2006, Identification of interleukin-13 receptor alpha 2 peptide analogues capable of inducing improved antiglioma CTL responses. Cancer Research 66(11): 5883-5891; peptide 1A9V is labelled in FIG. 4 as “IL13RA2-ST”). Reference peptide HIV pol 589-597 (“HIV”) served as positive control.

Similar results were obtained from a second distinct T2 cell clone.

Example 4: Candidate Antigenic Peptide Provides In Vitro Cytotoxicity Against Tumor Cells

This Example provides evidence that the antigenic peptide of sequence SEQ ID NO 31 («FLPFGFILV», also referred to herein as IL13RA2-B) provides in vitro cytotoxicity against U87 cells, which are tumor cells expressing IL13RA2. In contrast, the corresponding reference human peptide derived from IL13RA2 («WLPFGFILI», SEQ ID NO 263, also referred to herein as IL13RA2-H) does not provide in vitro cytotoxicity against U87 cells.

Methods:

Briefly, CD8 T cells from mice immunized with IL13RA2-H or IL13RA2-H were used. These cells were obtained after sorting of splenocyte from immunized mice and were placed on top of U87 cells (tumor cells expressing IL13RA2).

In more detail, CD3⁺ T cells were purified from splenocytes of HHD mice immunized with IL13RA2-H (WLPFGFILI, SEQ ID NO 263) or IL13RA2-B (FLPFGFILV). To this end, B6 β2m^(ko) HHD/DR3 mice were injected s.c. at tail base with 100 μL of an oil-based emulsion containing vaccination peptide plus helper peptide plus CFA (complete Freund's adjuvant), at day 0 and day 14. On d21, i.e. seven days after the boost injection, the animals were euthanized and the spleen was harvested. Splenocytes were prepared by mechanical disruption of the organ. CD3+ purification was performed using the mouse total T cells isolation kit from Miltenyi biotec using the recommended procedure. Efficient purification of cells and viability was validated by cytometry using appropriate marker for viability, CD8, CD4, CD3, and CD45.

U87-MG cells were seeded at 6×10⁵ cells/well in flat-bottomed 24-well culture plates and incubated for 24 h at 37° C. in DMEM (Dulbecco's Modified Eagle Medium) containing 10% of FCS (fetal calf serum) and antibiotics. After 24 hours, culture media were removed and replaced with media containing purified T CD3+ cells. The following ratios of T cells vs. U87-MG cells were used: 1/0.5, 1/1 and 1/5.

72 hours after co-culture of U87-MG cells and CD3+ T cells, all cells from the wells were harvested and specific U87-MG cell death was evaluated after immunostaining of CD45 negative cells with DAPI and fluorescent annexin V followed by cytometry analysis.

Results:

Results are shown in FIG. 5 . In general, U87 cell lysis was observed after treatment with IL13RA2-B but not with IL13RA2-H.

Example 5: Candidate Antigenic Peptide has Superior Affinity to the HLA-A*0201 Allele

This Example provides evidence that the antigenic peptide of sequence SEQ ID NO 31 («FLPFGFILV», also referred to herein as IL13RA2-B) has higher affinity to the HLA-A*0201 allele than other sequence variants of the corresponding reference human peptide derived from IL13RA2 («WLPFGFILI», SEQ ID NO 263, also referred to herein as IL13RA2-H). In this experiment, the antigenic peptide of sequence SEQ ID NO 31 was compared to

-   -   the peptide “1A9V”, as described by Eguchi Junichi et al., 2006,         Identification of interleukin-13 receptor alpha 2 peptide         analogues capable of inducing improved antiglioma CTL responses.         Cancer Research 66(11): 5883-5891, in which the tryptophan at         position 1 of SEQ ID NO 263 was substituted by alanine (1A) and         the isoleucine at position 9 of SEQ ID NO 263 was substituted by         valine (9V);     -   peptide “1I9A”, wherein the tryptophan at position 1 of SEQ ID         NO 263 was substituted by isoleucine (1I) and the isoleucine at         position 9 of SEQ ID NO 263 was substituted by alanine (9A); and     -   peptide “1F9M”, wherein the tryptophan at position 1 of SEQ ID         NO 263 was substituted by phenylalanine (1F) and the isoleucine         at position 9 of SEQ ID NO 263 was substituted by methionine         (9M).

A. Materials and Methods

The experimental protocol, materials and methods correspond to those outlined in Example 3, with the only difference that the above mentioned antigenic peptides were used.

B. Results

The following in vitro binding affinities were obtained:

Peptide In vitro binding affinity IL13RA2-B (SEQ ID No31) 0.49 1A9V 3.06 1I9A 2.22 1F9M 2.62

Accordingly, the antigenic peptide according to the present invention (IL13RA2-B (SEQ ID NO 31)) showed considerably higher binding affinity to HLA-A*0201 than all other peptides tested, whereas the peptide “1A9V”, as described by Eguchi Junichi et al., 2006, Identification of interleukin-13 receptor alpha 2 peptide analogues capable of inducing improved antiglioma CTL responses. Cancer Research 66(11): 5883-5891, showed the lowest affinity of the peptides tested. 

1. (canceled)
 2. An immunogenic compound comprising an antigenic peptide having an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO
 274. 3. (canceled)
 4. (canceled)
 5. The immunogenic compound according to claim 2, wherein the antigenic peptide is linked to a carrier protein.
 6. The immunogenic compound according to claim 5, comprising or consisting of an antigenic peptide of formula (I): PepNt-CORE-PepCt  (I), wherein: “PepNt” consists of a polypeptide having an amino acid length varying from 0 to 500 amino acid residues and located at the N-terminal end of the polypeptide of formula (I); CORE consists of a polypeptide comprising, or alternatively consisting of, an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 247 to SEQ ID NO 274; and “PepCt” consists of a polypeptide having an amino acid length varying from 0 to 500 amino acid residues and located at the C-terminal end of the polypeptide of formula (I).
 7. (canceled)
 8. An antigenic peptide having an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO
 274. 9.-11. (canceled)
 12. A cell loaded with an immunogenic compound comprising an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274 or with the antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO
 274. 13. (canceled)
 14. (canceled)
 15. A nucleic acid comprising a polynucleotide encoding an immunogenic compound comprising an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274, wherein the immunogenic compound is a peptide or a protein; or an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to, SEQ ID NO
 274. 16. (canceled)
 17. A host cell comprising the nucleic acid according to claim 15, wherein the nucleic acid is a vector.
 18. The host cell according to claim 17, wherein the host cell is a bacterial cell, preferably a gut bacterial cell.
 19. An immunogenic composition comprising (i) an immunogenic compound comprising an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274; (ii) an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274; or (iii) a cell loaded with an immunogenic compound of (i) or an antigenic peptide (ii); and one or more pharmaceutically acceptable excipients.
 20. The immunogenic composition according to claim 19, further comprising one or more immunostimulatory agents.
 21. The immunogenic composition according to claim 20, wherein the said immunostimulatory agent is selected from a group consisting of immuno-adjuvants and antigen-presenting cells. 22.-42. (canceled)
 43. A method for treating a cancer or initiating, enhancing or prolonging an anti-tumor-response in a subject in need thereof comprising administering to the subject (i) an immunogenic compound comprising an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274; (ii) an antigenic peptide comprising or consisting of an amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274; (iii) a cell loaded with an immunogenic compound of (i) or an antigenic peptide (ii); (iv) a nucleic acid comprising a polynucleotide encoding (a) an immunogenic compound of (i), wherein the immunogenic compound is a peptide or a protein, or (b) an antigenic peptide of (ii); (v) a host cell comprising the nucleic acid of (iv); or (vi) an immunogenic composition comprising the immunogenic compound of (i), the antigenic peptide of (ii), the cell of (iii), the nucleic acid of (iv), or the host cell of (v); wherein the subject has an HLA-A2 allele and a tumor expressing the interleukin-13 receptor subunit alpha-2 (IL-13Rα2) gene.
 44. The method according to claim 43, wherein the cancer is selected from the group consisting of glioma, ovarian cancer, testis cancer, head and neck cancer, melanoma, colorectal cancer, prostate cancer, astrocytoma, and renal cell carcinoma.
 45. The immunogenic compound according to claim 2, wherein the antigenic peptide consists of the amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO
 274. 46. The antigenic peptide according to claim 8, wherein the antigenic peptide consists of the amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO
 274. 47. The immunogenic compound according to claim 6, wherein the antigenic peptide of formula (I) is a recombinant fusion peptide or protein.
 48. The immunogenic composition according to claim 19, wherein the immunogenic composition comprises the antigenic peptide consisting of the amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ D NO
 274. 49. The immunogenic composition according to claim 21, wherein the immuno-adjuvant is an adjuvant helper peptide.
 50. The immunogenic composition according to claim 49, wherein the antigenic peptide consists of the amino acid sequence as set forth in any one of SEQ ID NO 1 to SEQ ID NO 242 and SEQ ID NO 267 to SEQ ID NO 274, and wherein the adjuvant helper peptide is a fragment of human telomerase reverse transcriptase (hTERT) having a length of 13 to 24 amino acids.
 51. The immunogenic composition according to claim 50, wherein the fragment of hTERT binds to MHC class II. 